“variable waveguide attenuator”的概念、定义、翻译、参考文献-科学参考

单词	variable waveguide attenuator
释义	variable waveguide attenuator [`ver·ē·ǝ·bǝl `wāv´gīd ǝ´ten·yǝ´wād·ǝr] ^{ELECTROMAGNETISM} Device designed to introduce attenuation into a waveguide circuit by moving a lossy vane either sideways across the waveguide or into the waveguide through a longitudinal slot.
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