名词
中文翻译：空心活塞
同义词：
['hollow cylinder', 'hollow rod', "hollow piston rod例句：1. The engine's performance is greatly improved by the use of hollow pistons.（使用空心活塞大大提高了发动机的性能。）2. The hollow piston is made from a lightweight material to reduce weight and increase efficiency.（空心活塞由轻质材料制成，以减轻重量并提高效率。）"]
例句：
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1. The engine's performance is greatly improved by the use of hollow pistons.
使用空心活塞大大提高了发动机的性能。
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2. The hollow piston is made from a lightweight material to reduce weight and increase efficiency.
空心活塞由轻质材料制成，以减轻重量并提高效率。
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3.The hollow piston is used in many industrial applications, such as pumps and compressors.
空心活塞在许多工业应用中被使用，如泵和压缩机。