1. He failed to return from a patrol.
他没能从一次巡逻中回来。
2. Highway patrol officers closed the road.
公路巡警关闭了这条路。
3. Guards patrol the perimeter of the estate.
保安人员在庄园四周巡逻。
4. A hand grenade was thrown at an army patrol.
一颗手榴弹被扔向陆军巡逻队。
The police patrol the streets to ensure public safety.
警察在街上巡逻以确保公共安全。
The soldiers were on patrol along the border.
士兵们正在边境沿线巡逻。
The security guard made his rounds, patrolling the entire building.
保安人员进行巡逻，检查整个建筑物。
The coast guard patrols the waters to prevent illegal fishing.
海岸警卫队巡逻海域以防止非法捕鱼。
The park rangers regularly patrol the forest to monitor wildlife and prevent poaching.
公园管理员定期巡逻森林，监控野生动物并防止偷猎。
The air force conducts aerial patrols to monitor enemy movements.
空军进行空中巡逻，监视敌方动向。
The police increased their patrol frequency after a series of burglaries in the neighborhood.
在附近发生一系列入室盗窃案后，警方加大了巡逻频率。
The border patrol agents searched for any signs of unauthorized entry.
边境巡逻人员搜寻任何非法入境的迹象。
The fire department conducts night patrols to check for fire hazards.
消防部门进行夜间巡逻，检查火灾隐患。
The teacher
patrolled the classroom to keep students focused during the exam.
老师在教室里巡逻，让学生在考试时保持专注。
Robotic dogs are currently emerging in industry-level scenarios such as power inspection and field patrol, in addition to consumer scenarios where home companionship is the main function, said Zhu Qiuguo, associate professor at Zhejiang University.
浙江大学副教授朱秋国表示，除了以家庭陪伴为主要功能的消费场景外，机器人狗目前还出现在行业级场景中，如电力检查和现场巡逻。
Having extremely economical features, relatively long service duration and reliable flight performance capability, the S-300C can also be used in mission personnel training, agriculture and forestry spraying, aerial photography, as well as police and aviation patrol.
S-300C具有极其经济的特点、相对较长的使用寿命和可靠的飞行性能，还可用于任务人员培训、农业和林业喷洒、航空摄影以及警察和航空巡逻。
Zacharia Mulwa, a road administrator of the patrol unit that ensures the smooth flow of traffic for all motorists at the expressway, said modern technologies used along the way could monitor the traffic flow and help his unit realize a rapid response in case of any emergencies.
巡逻队的道路管理员Zacharia Mulwa确保高速公路上所有驾车者的交通畅通，他说，沿途使用的现代技术可以监测交通流量，并帮助他的部队在任何紧急情况下实现快速反应。
The project will help with water source patrol, train more ecological preservers and promote garbage sorting, recycling and reductions in the use of plastic materials to local residents.
该项目将有助于水源巡逻，培训更多的生态保护人员，并向当地居民推广垃圾分类、回收和减少塑料材料的使用。
A technology leader in the intelligent patrol of belt conveyor, and one of the first batch of domestic companies devoted to belt conveyor intelligent inspection technology, Shanxi Dedicated bet big on the prospects of mine intelligence and automation in China.
作为带式输送机智能巡检领域的技术领导者，以及国内首批专注于带式输送机智能检测技术的企业，山西专地科技对中国的矿山智能化和自动化前景寄予厚望，并在此领域进行了大力投资。
"The intelligent patrol robots and the real-time monitoring equipment are also more precise than the manual inspection, making the gas output more secure and guaranteed.
智能巡逻机器人和实时监控设备也比人工检查更为精确，从而使得气体产出更加安全有保障。
It also finished the renovation projects of automatic platform gas distribution, intelligent detection of equipment and intelligent machine patrol inspection last year.
去年，它还完成了自动平台天然气分配、设备智能检测和智能机器人巡检等改造项目。
It's just past noon and 40-year-old Zhao Hongwei is getting ready to climb a 40-meter power tower to carry out routine maintenance work, shortly after finishing a seven-kilometer patrol on foot 2,600 meters above sea level.
The model is often used to train pilots, but can also be used for other general aviation activities such as aerial photography, sightseeing, tourism, and air patrol.
They have been equipped by multiple users both domestically and abroad, and have operated in diverse missions, such as counter-terrorism, border patrol and intelligence gathering operations.