直升机

The heliacal rising of Sirius, the Dog Star, marked the beginning of the ancient Egyptian calendar.
天狼星(犬星)的晨升标志着古埃及日历的开始。
In many cultures, the heliacal rising of certain stars or planets was used to mark the change of seasons.
在许多文化中，某些星星或行星的晨升被用来标记季节的变化。
The heliacal rising of the Pleiades was an important astronomical event for the ancient Greeks.
对于古代希腊人来说，昴宿星团的晨升是一个重要的天文事件。
The term "heliacal" refers to anything associated with the rising of a star in the morning sky.
“晨升”一词指的是与早晨天空中星星升起有关的任何事物。
The heliacal setting of a star is the moment when it disappears from view below the horizon after sunset.
星星的晨落是指它在日落之后消失在地平线以下的那一刻。
The ancient Egyptians used the heliacal rising of the star Sothis (Sirius) to校
古埃及人使用天狼星(织女星)的晨升来确定尼罗河的洪水周期。
The heliacal rising of certain stars was also used by sailors to navigate at sea.
某些星星的晨升也被航海家用来在海上导航。
The heliacal rising of the planet Venus was considered a harbinger of war by the ancient Romans.
对于古罗马人来说，金星的晨升被认为是战争的预兆。
The heliacal rising of the constellation Orion was an important marker for the beginning of winter for the ancient Maya.
对于古玛雅人来说，猎户座的晨升是冬季开始的重要标志。
The heliacal rising of the star Aldebaran was used by the ancient Chinese to mark the start of the lunar year.
对于古代中国人来说，毕宿五的晨升被用来标记农历年的开始。