The drop-off mechanism may be automatic and actuated at time of firing, or be actuated after firing.

降落机构可为自动的，并在点火时被启动或在点火后被启动。

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Kinases can, in many cases, serve as a mechanism for switching a protein on or switching a protein off.

激酶能够,在很多情况下,能够激活一种蛋白或者关闭一种蛋白

耶鲁公开课 - 生物医学工程探索课程节选

And then for a lot of students too, what this mechanism does is it just takes the edge off a course like this.

对于大多数学生来说，这种机制同时也会削弱,此类课程的作用。

哈佛公开课 - 计算机科学课程节选

Well, if this kinase happens to turn this protein on then you would like to have a mechanism to turn it off as well.

那么在激酶激活蛋白质后,你会希望有一种方法能够使它失活

耶鲁公开课 - 生物医学工程探索课程节选

If the adrenalin response continues to fire off too regularly, then the body manufactures more, and eventually the mechanism fires off unexpectedly, which incidentally explains how people can have panic attacks at 2am in the morning when they should be asleep.

BBC: Stewing in your juices

The Russian docking mechanism had to be taken off the vehicle so a faulty switch could be replaced.

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You see, while retailers are getting ripped off, they're also dependent on the very mechanism that fuels the phenomenon.

NPR: Identification Theft: The Growing Scam Industry