名词
中文翻译：活塞环的侧面
同义词：
["活塞环侧边，活塞环侧面例句：1. The engine's performance depends on the quality of the piston rings.（发动机的性能取决于活塞环的质量。）"]
例句：
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1. The engine's performance depends on the quality of the piston rings.
发动机的性能取决于活塞环的质量。
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2. The technician carefully inspected the side of the piston ring to ensure it was in good condition.
技术员仔细检查了活塞环的侧面，以确保它处于良好状态。
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3.The engineer recommended replacing the worn-out side of the piston ring to improve efficiency.
工程师建议更换磨损的活塞环侧面以提高效率。