“piston”的概念、定义、翻译、参考文献-科学参考

单词	piston
释义	piston [`pis·tǝn] ^{ELECTROMAGNETISM} A sliding metal cylinder used in waveguides and cavities for tuning purposes or for reflecting essentially all of the incident energy. Also known as plunger; waveguide plunger. ^ENGINEERING See <<force plug>> ^{MECHANICAL ENGINEERING} A sliding metal cylinder that reciprocates in a tubular housing, either moving against or moved by fluid pressure.
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