名词
中文翻译：阀门块
同义词：
['valves', 'valve seat例句：1. The valve block needs to be replaced immediately after the engine has been shut down.（在发动机关闭后，阀门块需要立即更换。）']
例句：
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1. The valve block needs to be replaced immediately after the engine has been shut down.
在发动机关闭后，阀门块需要立即更换。
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2. The valve block is responsible for controlling the flow of gases through the engine.
阀门块负责控制气体通过发动机的流量。
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3. The valve block is made of a special material that allows it to expand and contract with the engine's temperature changes.
阀门块由一种特殊的材料制成，允许它随着发动机温度的变化而膨胀和收缩。