名词
中文翻译：活塞杆
同义词：
['piston rod', 'piston stem', 'piston rod member']
例句：
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1. Theengine's piston stem is worn out, which affects the performance of the engine.
发动机的活塞杆磨损，影响发动机的性能。
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2. The piston stem is crucial for the engine's operation.
活塞杆对于发动机的运行至关重要。
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3. The piston stem needs to be replaced regularly to ensure smooth operation of the engine.
定期更换活塞杆以确保发动机的顺畅运行。