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天文时的英文

音标:[ tiānwénshí ]  发音:  
"天文时"怎么读用"天文时"造句

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  • astronomical time

例句与用法

  • The astronomical time scale based on the earth s rotation is another common time scale
    根据地球自转而厘定的天文时标是另一常用时标。
  • Since 1999 until recently , the two time standards have been in close enough synch to escape any need to add a leap second , nist said
    该协会说,从1999年开始到最近几年,原子时和天文时一直处于同步状态,所以不需要增加一个闰秒。
  • A leap second is added to keep uniform timekeeping within 0 . 9 second of the earth ' s rotational time , which can speed up or slow down because of many factors , including ocean tides
    增加这一闰秒是为了保证协调世界时原子时和地球自转时间天文时之间的差距控制在0 . 9秒以内,地球自转速度的加快或减慢受到很多因素的影响,潮汐就是其中之一。
  • A leap second is added to keep uniform timekeeping within 0 . 9 second of the earth ' s rotational time , which can speed up or slow down because of many factors , including ocean tides
    增加这一闰秒是为了保证协调世界时(原子时)和地球自转时间(天文时)之间的差距控制在0 . 9秒以内,地球自转速度的加快或减慢受到很多因素的影响,潮汐就是其中之一。
  • As a result of atmospheric circulation and other geophysical events on earth , the rate of the earth s rotation is uneven and has been slowing down . difference between the two time scales arises . the purpose of introducing leap second is to reconcile the two time scales so that their difference is kept less than 0 . 9 second
    然而,由于大气运动及其他的地球物理现象,地球的自转速度并不匀称并正在逐渐减慢,因此天文时标和协调世界时之间会出现差异,引进闰秒的目的就是要减少两者的分别,使其相差保持少于0
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