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second contact中文是什么意思

  • 【天文学】蚀既。

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  • 例句与用法
  • We must not forget to open the aperture at the second contact .
    在食既时不要忘记放大光圈。
  • Second contact with master
    第二次接触
  • Second contact surface
    第二界面
  • Even with the much closer venus , the observations were tricky ; it was crucial to know the exact geographic positions of the observing stations and to accurately time the four “ contacts ” between venus and the sun . ( the first and second contacts occur at ingress , when venus ' s disk touches the sun ' s from first the outside and then the inside ; the third and fourth contacts occur at egress . ) but the potential payoff from the observations would be enormous
    即使是距离近得多的金星,这个测量也不容易;必须要知道观测站确实的地理位置,且要能准确测定凌日时金星和太阳发生四次接触的时间(第一和第二次接触发生在初切,即金星的盘面由外然后再内接触到太阳盘面;第三和第四次接触发生于终切) 。
  • 其他语种释义
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Last modified time:Sat, 16 Aug 2025 00:29:56 GMT

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