after time duration
后持续时间
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The watch was used to time the duration of the Descent Orbit Insertion maneuver and to time the rendezvous maneuvers after launch from the lunar surface.
FORBES: Apollo 15 Bulova Moon Watch Up for Auction at Bonhams
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