名词
中文翻译：轻量活塞
同义词：
['lightweight piston', 'lightweight cylinder', 'light-weight rod']
例句：
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1.The new car has a lighter-weight piston that makes it more fuel-efficient.
这款新车有一个轻量活塞，使其更省油。
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2.The engineer used a lighter-weight piston to reduce the weight of the engine.
工程师使用了一个轻量活塞来减轻发动机的重量。
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3. The piston is designed to be lighter-weight and more durable.
这个活塞设计得更加轻便且耐用。