sending allowance传输: transfer; transmission; conv ...衰耗: pad control全程传输衰耗等效值: overall transmission equivalent传输衰减: transmission attenuation衰耗: pad control◇衰耗器 attenuator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:传输衰耗，即可在微信中查询翻译
