Featuring a spring piston firing mechanism, the sniper rifle is almost silent when fired.

采用弹簧活塞式发射装置，狙击步枪射击时几乎无声。

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We sometimes use this analogy of a kid's game called 'booby trap' where you have a bunch of little blocks and there's a spring piston and it pushes on them.

他说，“我们有时候把地震和小孩子们玩的一种叫做‘陷阱’的游戏做比较。”你有一些小砖块和一个活塞弹簧，弹簧挤着砖块。

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Spring opposed , air operated diaphragm or piston, actuators are preferred for on-off applications.

弹簧平衡型、气动膜片或活塞，执行机构对于开关阀是首选的。

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Diffrient was a frustrated industrial designer with pioneering achievements, including the first chair whose height could be adjusted via a gas piston and spring, and a fold-up office table that replaced screws and plates with simple interlocking hinges.

FORBES: The Chair Men