名词
中文翻译：双冲程发动机的泄压阀
同义词：
['double-acting valve', 'double-acting camshaft']
例句：
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1.The car's engine has a double-beat drop valve system that helps it run more efficiently.
这辆车的发动机有一个双冲程泄压阀系统，有助于它运行得更加高效。
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2.The engineers are working on replacing the old double-beat drop valve with a newer model.
工程师们正在努力将旧的双冲程泄压阀替换为更现代的型号。
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3. The double-beat drop valve is responsible for regulating the flow of oil and gases in the engine.
双冲程泄压阀负责调节引擎中油和气体的流量。