The scuba diver explored the colorful coral reefs
underwater.
潜水员探索了水下五彩斑斓的珊瑚礁。
Underwater photography captures the mesmerizing world beneath the ocean's surface.
水下摄影捕捉到了海面下迷人的世界。
The submarine can stay submerged
underwater for months without resurfacing.
这艘潜艇可以在水下潜伏数月而不上浮。
The ancient shipwreck was discovered accidentally by an
underwater archaeological team.
一艘古老的沉船被一个水下考古团队偶然发现。
Fish use gills to extract oxygen from the water
underwater.
鱼类利用鳃在水下从水中提取氧气。
The documentary filmed the fascinating behavior of marine life
underwater.
纪录片拍摄了水下海洋生物的迷人习性。
Underwater welding is a highly specialized skill that requires advanced training.
水下焊接是一项需要高度专业化技能和高级培训的工作。
Divers often use hand signals to communicate
underwater since speech doesn't travel well.
潜水员在水下常使用手势交流，因为声音在水中传播效果不佳。
The
underwater cave system is a popular destination for experienced divers seeking adventure.
这个水下洞穴系统是寻求冒险的资深潜水者们的热门目的地。
The
underwater volcano eruption created a new island in the Pacific Ocean.
水下火山的喷发在太平洋上形成了一个新的岛屿。
State Grid Zhoushan Power Supply Co, the project's developer, said that using cables buried beneath the seabed, instead of simply being placed underwater, can help solve problems like potential cable damage from ships' anchoring and longer project approval time.
该项目的开发商国网舟山供电公司表示，使用埋在海底的电缆，而不是简单地放在水下，可以帮助解决船只抛锚可能造成的电缆损坏和项目审批时间过长等问题。
The Jakarta-Bandung High-Speed Railway, the cross-sea underwater tunnel between the cities of Shenzhen and Zhongshan, the main project of a grid that significantly uplifted the power supply in the Greater Bay Area have been included in the list.
雅加达-万隆高铁、深圳市和中山市之间的跨海海底隧道、大幅提升大湾区电力供应的电网主体项目也被列入名单。
It runs along the Lotus Bridge and crosses the Shizimen Waterway before entering Hengqin island in Zhuhai, Guangdong province, through an underwater tunnel, and then arrives at the underground HE2 station located in front of Hengqin Port.
它沿着莲花大桥穿过狮子门水道，然后通过水下隧道进入广东省珠海市的横琴岛，然后到达位于横琴港前的地下HE2站。
Dong Liwan, a professor of marine economies at Shanghai Maritime University, said this offshore engineering platform, supported by the latest technologies, has the characteristics of low production cost and high localization rate, compared with previous underwater production systems used by similar oil and gas fields.
上海海事大学海洋经济教授董立万表示，与以往类似油气田使用的水下生产系统相比，该海洋工程平台以最新技术为支撑，具有生产成本低、国产化率高的特点。
The installation of the jacket is a major breakthrough as it is the first time China has installed a fixed jacket some 300 meters underwater.
导管架的安装是一个重大突破，因为这是中国首次在水下约300米处安装固定导管架。
Liu Yiyong, deputy manager of the construction department of Offshore Oil Engineering Co Ltd, a CNOOC unit, said the company has overcome numerous challenges including water injection under pressure, underwater grouting and sand slopes on the seabed, to ensure the jacket is precisely installed.
中海油分公司海洋石油工程有限公司施工部副经理刘义勇表示，该公司克服了许多挑战，包括压力注水、水下灌浆和海底沙坡，以确保导管架的精确安装。
China Telecom told China Daily on Wednesday that repair ships have been coordinated from Papua New Guinea to fix the submarine cable in Tonga damaged by a massive eruption of an underwater volcano off the island nation, and the repair work may take several weeks.
中国电信周三告诉《中国日报》，巴布亚新几内亚已协调维修船修复汤加海底电缆，该电缆因该岛国附近的水下火山大规模喷发而受损，维修工作可能需要数周时间。
Huawei's branch in the Philippines which is responsible of its business in Tonga said the massive eruption of an underwater volcano off Tonga has damaged the local communication facilities in the nation to a certain extent.
华为在菲律宾负责汤加业务的分公司表示，汤加附近一座水下火山的大规模喷发在一定程度上破坏了该国当地的通信设施。
"The Oriental Movie Metropolis, China's answer to Hollywood, has about 40 of the world's top-class sound stages, including the world's largest sound stage at about 10,000 square meters, and the world's only underwater sound stage.
The Diving & Resort Travel Show, one of the most crowded diving exhibitions, held its Beijing show in August, covering a wide range of related business such as recreational diving, technical diving, free diving, diving medical cares, ocean tourism, underwater photography and marine conservation.
The company will also do underwater tunnels, in addition to its underground tunnels business, Musk said.
The company has built an 800-square-meter underwater abyss along the Huangpu River to showcase its extensive collection of luxury watches, making it the biggest expo of its kind in recent times.
It took the company nearly four days to create the underwater abyss, said Panerai CEO Jean-Marc Pontroue.
According to the CEO, the underwater abyss traces the brand's 159-year-old legacy when it started as a secret supplier to the Italian Navy before being acquired by the Switzerland-based Richemont Group in 1997.
According to Silvergate's new deal with Wanda Kids, the first of the two films, titled "The Ring of Fire," will be released in 2020, while no exact date has been decided for the second one, "The Underwater Caves of Sac Atun.
Sri Lanka and China signed a contract on Wednesday to construct new underwater sewage and pipelines in Colombo to prevent the threat of floods.
At the lessons, caregivers are encouraged to plunge their babies underwater from the age of six weeks.
It features underwater suites and a variety of ocean-themed activities such as water slides, interaction with dolphins and other marine mammals, and appreciation of about 86,000 marine species.
A couple who won a competition on the Airbnb accommodation site lie in an underwater bedroom surrounded by a shark tank at the Aquarium de Paris in France.
Workers from State Grid Corp of China lay an underwater cable in Zhoushan, Zhejiang province.
"Through alternative financing modes such as PPP, CCCC has gained operational assets in the domestic market worth 250 billion yuan ($38.33 billion) in sectors including ports, underwater tunnels and industrial parks.
He is eager to discuss the idea of establishing a smart meters production unit in Greece with CMEC or cooperation in the electric cars sector and the transfer of electricity via underwater cable interconnections linking Crete to the mainland with State Grid, he told Xinhua.
CSIC has set up an industrial fund with an initial capital of 10 billion yuan ($1.53 billion) to further invest in fields such as offshore engineering products, power, electronic information and intelligent equipment, and underwater defense.
It will be equipped with the latest technology, including a AIP (Air Independent Propulsion) system, which will allow the ship to stay underwater for up to 21 days without resurfacing.
In addition to shipbuilding and offshore engineering businesses, CSIC wants to boost 10 other areas, including power and underwater defense products, electronic information and intelligent equipment, and mechanical and electrical equipment, to integrate its civilian and military businesses over the next five years.
NANGONG AOQING / FOR CHINA DAILYA leading Chinese fishery company and the Dalian University of Technology have established a laboratory to develop underwater robots, which are expected to take the place of divers to catch precious seafood.
According to the agreement between the two parties, the lab will carry out innovation of underwater robots focusing on tasks such as environmental perception, underwater observation and ecological monitoring.
"Currently, industrial robots and aerial robots are enjoying rapid development in China while the research and development of underwater robots is relatively slow," said Deng.
Guo Dongming, president of the Dalian University of Technology, said the cooperation will promote industrial upgrading through new technology, make progress in the areas of underwater robots and maritime information, and help boost the maritime economy in China.
The "Haijing" system, the first set of underwater cable-based seismic exploration acquisition equipment developed and manufactured by China, was deployed by Haiyang Shiyou 720 during the mission, a large deep-water geophysical exploration vessel owned by CNOOC.
Through its underwater visual monitoring system, the growth of its cultivated aquatic species can be observed in real-time and intelligently analyzed.
Xingguojinmao breeds different seafood species in an area that covers 20 square kilometers underwater and in buoyant rafts covering 5 sq km.
The country's longest underwater tunnel which runs for 10.79 kilometers has recently opened to traffic in southern Jiangsu province as part of the Suzhou-Wuxi-Changzhou South Expressway, linking some of the nation's most prosperous city clusters.
It is incredible for most people to think of the expressway crossing Taihu Lake from underneath, he said, adding the length and width of the tunnel exceeds the underwater tunnel of the Hong Kong-Zhuhai-Macao Bridge, becoming an ultra-wide and ultra-long underwater tunnel in China.
"The main features of our success include our technical prowess which safeguarded this ultra-long and ultra-wide underwater tunnel in China.
In the company's showroom, an underwater charger constantly powers in-water equipment using deep-sea microcurrents.
Hainan provincial authorities reached a strategic agreement with a Beijing company on Sunday, aiming to build the world's first commercial demonstration underwater data center in Sanya, a coastal city on the southern tip of Hainan Island, according to local officials.
The underwater data center will employ information technology facilities such as servers in seabed cabins, using submarine composite cables to power transmission of data back to onshore internet data stations.
Cooled by seawater, the underwater data center has such advantages as power saving, land saving, water saving and low total costs, said Xu Tan, vice-president of Beijing Highlander Digital Technology Co Ltd, which is engaged in smart sea economy technologies research and development and will be in charge of the data center's construction.
"The demonstration project, to be located in Haitang Bay, one of the five well-known beautiful bays in northeastern Sanya, will be grown into a comprehensive marine new technology industrial park with the underwater data center as the core," Xu said.
With the advantages of computing power, cross-border data, local scenarios and talent supply and the development potential of international underwater cable landing station, the world's first commercial underwater data center and Lingshui Li'an International Education Innovation Experimental Zone, the Cloud offers services such as cloud storage, elastic public network IP, load balancing and cloud interconnection.
The Shenzhen-Zhongshan bridge across the Pearl River is a sea-crossing link, integrating two bridges, two artificial islands, a two-way eight-lane tunnel and underwater channels.
Offshore construction of China's first deep-sea floating wind power platform has been completed and ready to be put into operation by the end of this month, after the 5-kilometer underwater cable was successfully laid on Saturday, said its operator China National Offshore Oil Corp.
CMM has attracted more than 800 entertainment companies, including those specializing in visual effects, audio production, art, costumes and props, animation and underwater shooting.
A camera placed over each pool monitors activity, along with an underwater camera connected to a floating 5G antenna.
The installation of the jacket is a major breakthrough, as it is the first time China has installed a fixed jacket some 300 meters underwater.
Wang Ke, analyst at consultancy Analysys, said climbing, surfing and underwater diving are also popular sports activities among Chinese tourists.
And around 20 themed workshops will be held to discuss topics ranging from biological resources and mineral development to underwater robots.
届时将举办约20个主题研讨会，议题涵盖生物资源、矿产开发直至水下机器人等广泛领域。
A few employees who stayed on the island are broadening roads, pruning plants and maintaining the underwater landscape.
Orders for homegrown equipment soar on growth in large infrastructure projectsA super large tunnel boring machine (TBM) measuring 15.03 meters in diameter has begun an underwater tunneling project in Shantou city, in South China's Guangdong province.
The Navy's submarines were antiquated and made loud noises, the Achilles' heel in underwater operations.
He also works as an underwater tour guide at Malapascua, an island north of Cebu in the Philippines in a Chinese-run diving center called Fish Brothers.
But what if a data center is placed underwater — even as deep as on the bottom of the ocean?
Having completed construction in December, the world's first commercial underwater data center is undergoing preparatory work for initial operations in seawaters just off Lingshui Li autonomous county, Hainan province, said its builder, Beijing Highlander Digital Technology Co Ltd, a company engaged in advanced sea technologies and UDC services that was listed a "little giant" company by the Ministry of Industry and Information Technology in 2020.
Facing the most frequently asked one — why put a data center underwater?
"In seawater with relatively low temperatures, the challenge to reduce the power usage effectiveness rate — the ratio of the total amount of energy used by a computer data center facility to the energy delivered to computing equipment — of an underwater data center is actually not that great.
It's 10,000 square-meter high-tech monomer soundstage, Asia's largest underwater stage, and advanced digital video and audio equipment can realize motion capture, virtual shooting, 3D scanning, DIT (digital imaging technician), and real-time rendering cluster.
In the future, no matter whether the facilities are underwater, indoors or in deep space, we will be able to enjoy highly precise, safe and intelligent positioning and navigation services.
The robot slid along the ice before plunging into an unfrozen area of the waterway, with the flame burning well underwater as it was passed to another robot.
The second torch was swiftly lit, completing the first-ever robotic underwater Olympic torch relay.
For example, the space giant China Aerospace Science and Industry Corp was responsible for developing the special torches used in the underwater Olympic relay.
The company said that compared with underwater torches overseas that use solid fuel and whose flames cause pollution, those for Beijing 2022 use gaseous fuel that is smokeless and causes no pollution.
Tian Qiyan, associate research fellow at the Chinese Academy of Sciences' Shenyang Institute of Automation in Liaoning province, who oversaw the project, said the robot relay was also supported by the latest high-precision underwater hovering and positioning technologies.
At the mountain-ringed Tingzikou hydropower station in Guangyuan, Sichuan province, a gigantic 5G-enabled underwater robot swims in a stilling basin, which is basically a 20-meter-deep pool or reservoir that can reduce turbulence of water flow.
In a hydropower station in Guangyuan, Sichuan province, a 5G-enabled gigantic underwater robot was swimming in a 20-meter-depth pool.
But with the help of the 5G-powered underwater robots, the process can be shortened to about 20 days, for there is no need to pump out the water of the stilling basin for examination.
And with the advantage of the 5G network's large bandwidth, the high-definition images collected by underwater robots can be transmitted back to a control center in real time and the staff can remotely control the robots to do some basic work such as removing silt.
In addition to the 5G-enabled underwater robots, 5G-powered drones are also used for the examination of the hydropower station's dams.
Dalian, Liaoning province, will accelerate the construction of the country's first intelligent marine equipment base on the real sea areas in Dalian Jinpu New Area, a city official said during a summit on AI and underwater robots held on Sunday.
"We will integrate domestic universities and superior industrial resources to carry out high-level scientific research and technological development related to underwater robots, and promote the design, research and development of underwater robots and industrial incubation," said Zhang Zhihong, vice-mayor of Dalian.
The 2020 China Underwater Robot Professional Contest was held from Sept 18 to 20 in Dalian.
Initiated in 2017, it is said to be the first intelligent underwater robot competition to be held in a real offshore environment.
The host city, Dalian, which boasts one-10th of the country's coastline, has a solid scientific research foundation in the development of underwater robots, with a number of universities and research institutions engaged in research, including DUT and Dalian Maritime University.
A key laboratory for underwater robots was set up at DUT, as a key support project.
The area of underwater AI robotics is fast becoming a field in which China is a world specialist.
Devices of the future could revolutionize numerous fields in which access and maintenance is difficult, in areas such as water rescue, hydropower, aquaculture, oil production, and underwater engineering.
Companies such as Tianjin Deepinfar, alongside others such as Edgetech in the United States and Rovco in the United Kingdom, produce what are called AUVs, or Autonomous Underwater Vehicles.
These are robotic devices that are equipped with underwater propulsion systems complete with onboard computing abilities to navigate obstacles independently.
Robots designed for exploration, search and rescue, or underwater engineering all take on different shapes, ranging from torpedo-shaped self-driving submarines, to deep sea floor crawlers that look like huge slugs.
Soon, advances in this field of underwater research may not only allow us to explore more of our ocean for the benefit of geologists, the oil industry, or the military.
Amy Zhang, public relations manager at Robosea, a Beijing company that specializes in underwater drones and technologies, said a major challenge when it comes to promoting products is consumers' lack of familiarity with underwater activities.
Breakthroughs in deep-sea technology have allowed underwater archaeology to explore depths ranging from 50 meters to 2,000 meters, he added.