名词中文翻译
中文翻译：活塞
同义词：
['piston', 'cylinder', 'piston rod', 'piston ring']
例句：
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1. The car's engine is running smoothly with the new pistons installed.
新安装的活塞使汽车引擎运行顺畅。
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2. The engineer inspected the piston rings to ensure they were functioning properly.
工程师检查了活塞环以确保它们正常工作。
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3. The old piston rod had worn out and needed to be replaced.
旧的活塞杆磨损严重，需要更换。