An emergency shut-down system enables the engine to be stopped in an emergency.

应急停车系统能使机器在紧急情况下迅速停止工作。

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The computer system will be shut down over the weekend.

计算机系统周末关闭。

《牛津词典》

With wired setups, the fear is that a burglar might be able to shut your system down simply by cutting the right cable.

对于有线装置，人们担心的是，窃贼可能只要切断正确的电缆就能关闭系统。

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Two of the four gyroscopes - part of the space station's pointing and navigating system - were initially shut down but the crew installed a jumper cable to bring up a third gyroscope, leaving the station in a much more stable position, AP says.

BBC: Cooling system fault hits International Space Station

What caused the disaster was the tsunami which shut down their back-up power system.

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These chemicals speed up your heart-rate, shut down your immune system, digestion, and reproductive systems, allowing you to use all the energy that would usually go toward, say, digesting a granola bar for swimming like hell to the beach.

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