The capsules can be made to release the pesticides at a predetermined time.

可使这些胶囊在预定时间释放出杀虫剂。

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At the same time, he directed NASA to begin development of new rockets, capsules and landers to carry astronauts back to the moon by the early 2020s.

与此同时，他还命令太空总署在2020年早些时候，研发出新的火箭、太空舱和将宇航员送返月球的着陆舱。

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These primitive meteorites are like time capsules, containing the most primitive materials in our solar system.

这些原始陨石就像时间胶囊，含有太阳系最原始的资料。

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Whereas the orbiter could carry seven people at a time into orbit, the Russian Soyuz capsules being used at the moment will only ferry three individuals per flight.

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Burma became one of the world's great time capsules.

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It is the third time in the space station's history that a crew has had to take shelter in escape capsules because of the possibility of being hit by orbital debris.

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