动名词短语
中文翻译：活塞环的移除
同义词：
['removal of piston ring', 'removal ofpiston ring']
例句：
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1.The engineer removed the piston ring toinspect the engine.
工程师移除了活塞环来检查发动机。
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2. The technician carefully removed thepiston ring to avoid damaging the cylinderhead.
技术员小心翼翼地移除了活塞环，以免损坏气缸头。
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3. Themechanic performed a thorough removalof the piston ring beforereplacing it.
机械师在更换活塞环之前进行了彻底的移除工作。