“frequency standard”的概念、定义、翻译、参考文献-科学参考

单词	frequency standard
释义	frequency standard [`frē·kwǝn·sē ´stan·dǝrd] ^ELECTRONICS A stable oscillator, usually controlled by a crystal or tuning fork, that is used primarily for frequency calibration.
随便看	isofootcandle isoforming isofronts-preiso code isogal isogam isogamete isogamy isogeneic Isogeneratae isogenic isogeotherm isogonal conjugates isogonal lines isogonal transformation isogonic line isogony isogor isogor map isograd isogradient isograft isogram isograph isogriv isogriv chart

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