“longitudinal quadrupole”的概念、定义、翻译、参考文献-科学参考

单词	longitudinal quadrupole
释义	longitudinal quadrupole [´län·jǝ`tüd·ǝn·ǝl `kwäd·rǝ´pōl] ^ACOUSTICS A sound source resulting from a variation of a component of the velocity of matter in a direction parallel to the velocity component. ^{ELECTROMAGNETISM} An electric or magnetic quadrupole which produces a field equivalent to that of two equal and opposite electric or magnetic dipoles separated by a small distance parallel to the direction of the dipoles. Also known as axial quadrupole.
随便看	automatic-alarm-signal keying device automatic back bias automatic background control automatic balance automatic bass compensation automatic batcher automatic bias automatic brazing automatic breech mechanism automatic brightness control automatic calibration automatic calling unit automatic call origination automatic carriage automatic casing hanger automatic C bias automatic celestial navigation automatic character recognition automatic check automatic check-out system automatic choke automatic chroma control automatic chrominance control automatic code automatic coding

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