名词
中文翻译：敲击活塞
同义词：
['percussion piston', 'percussion rod']
例句：
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1.The percussion piston is usedto strike the hammer against the anvil.
敲击活塞用于敲打锤子在砧上。
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2.The percussion piston is acrucial component of the piano mechanism.
敲击活塞是钢琴机制中的关键部件。
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3. The percussion piston was designed to improvethe sound quality of the instrument.
敲击活塞被设计用来提高乐器的声音质量。