动词
中文翻译：脱气
同义词：
['degas', 'depressurize']
例句：
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1. The gas tank needs to be degassed before refueling.
在加油前，需要给油箱排气。
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2. The engineer degassed the system to prevent leaks.
工程师排空了系统以防止泄漏。
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3. During the process of degassing, the pressure in the tank will decrease.
在排空过程中，罐内的压力会降低。