音标：[ˌɔbzə:ˈveiʃən taim] ；

观测时间

observation time的用法和样例：

例句

And the most reliable observation time was submitted.提出了最可靠的观测时间。
Do not report more than one position for each time of observation!每个观测时间不要报一个以上的位置。

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