名词中文翻译
中文翻译：螺线管和活塞
同义词：
['solenoid', 'plunger']
例句：
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1. The solenoid valve is usedto control the flow of oil in amachine.
螺线管阀门用于控制机器中油的流动。
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2. The plunger isused to push the piston up anddown.
活塞用来上下推动活塞。
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3. The solenoid valve was designed to improve efficiencyin the manufacturing process.
螺线管阀门被设计来提高制造过程的效率。