名词
中文翻译：气体继电器
同义词：
['gas switch', 'gas interlock', 'gas trip device']
例句：
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1. The gas relayis used to ensure that the safety valve opens only when the pressure in the pipeline exceeds a certain level.
气体继电器用于确保安全阀只在管道压力超过一定水平时打开。
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2. During maintenance, the gas relay must be checked for proper operation.
在维护期间，必须检查气体继电器的正确操作。
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3.The gas relay was designed to prevent accidents caused by faulty equipment.
气体继电器的设计旨在防止因设备故障引起的事故。