shutoff
['ʃʌtˌɔ:f]
n.
用以关闭的东西（如阀门、开关等）;
栓;
遮断;
停止;
例句:
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The most economical mechanism for tight shutoff is the impactor handwheel.
要做到紧密关闭,最经济的机械装置就是冲击式手轮.
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To test for a leaky # 2 shutoff, use the following procedure.
要检测泄漏的2 号 关闭阀, 请采用下列程序.
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Shutoff control is by means of an adjustable spring.
切断控制通过可调整弹簧实现.
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The same sensory shutoff function is also essential for sleep.
来自SA
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When food is full of nutrition our bodies have an automatic shutoff to eating too much.
来自SA