“change gear”的概念、定义、翻译、参考文献-科学参考

单词	change gear
释义	change gear [`chānj ´gir] ^{MECHANICAL ENGINEERING} A gear used to change the speed of a driven shaft while the speed of the driving remains constant.
随便看	Q magnitude Q meter Q multiplier Q point QPRK QPSK qr QRS complex qr tr Q signal QSO QSS Q-switched laser qt quad quadded cable quadded redundancy quad density quad in-line quadrangle quadrant quadrantal angle quadrantal correctors quadrantal deviation quadrantal error

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