名词中文翻译
中文翻译：内活塞
同义词：
['inner cylinder', 'inner rod']
例句：
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1. The engine's inner piston is worn out.
发动机的内活塞磨损了。
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2. The inner piston is responsible for the movement of the piston rod.
内活塞负责活塞杆的运动。
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3. The inner piston is used to transfer the force from the crankshaft to the connecting rod.
内活塞用于将曲轴的力传递到连杆上。