attenuator-wave guide波导管: waveguide tube; channel wave ...衰减: attenuation; decay; damping; ...装置: installation; device; appara ...声衰减装置: sound fading device衰减装置: alleviant; alleviator; attenuator unit下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:波导管衰减装置，即可在微信中查询翻译
