The plane should be landing right on schedule.

那架飞机应该会按预定时间降落。

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This paper conducts the optimization problem of arriving aircraft's schedule time arrival, in the case of aircraft landing sequence has made certain.

本文研究了在着陆顺序已经确定的情况下，对到达航班流的预计着陆时间优化问题。

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The moon gravity meter has good experimental effect on the earth before landing on the moon, but it can't normally work when astronaut set up the gravity meter on the moon on schedule.

登月前在地球上进行的试验效果良好，但是，当宇航员按登月计划在月球上布置好重力仪后，却不能正常工作。

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