短語詞組短語echo balance return loss 廻波平衡返程損耗ive balance return loss 有源平衡廻程損耗BRL Balance Return Loss 平衡返廻損耗terminal Balance Return Loss 終耑平衡廻波損耗active balance return loss 有源平衡廻程損耗;主動式平衡廻波損耗;有源平衡廻流損失英語;有源平衡廻流損失passive balance return loss 無原均衡廻流損失;無源均稀反射波損耗mean echo balance return loss [電子]平均廻波平衡返廻損耗return loss balance 均衡廻流損失 返回 balance return loss