字典網>> 英漢字典>> D開頭詞條>>directional comparision relay的意思 漢英字典directional comparision relay中文翻譯：【電】 比較方向繼電器英文字典相關詞條：directional reception directional hydrophone directional element directional homing directional characteristics directional derivative directional diagram directional separation filter directional solidification directional filter