字典網>> 英漢字典>> D開頭詞條>>directional hydrophone的意思 漢英字典directional hydrophone中文翻譯：【電】 單向潛水微音器英文字典相關詞條：directional lobe directional separation filter directional antenna directional counter directional gain directional microphone directional comparision relay directional graph directional emitter directional filter