短語(yǔ)詞組短語(yǔ)drop -wire sinking 停經(jīng)片下沉drop safety wire 跌落保險(xiǎn)銷closed ended drop wire 閉口式停經(jīng)片d ended drop wire 閉口式停經(jīng)片關(guān)上drop wire clamp 分線接線柱polyvinyl chloride drop wire 聚氯乙烯引入線;聚氯乙烯線multiple drop wire 多對(duì)引下線drop wire west bank 接戶線flat drop wire 扁形進(jìn)戶線 返回 drop wire