extension line〔名词〕分机线详细»
extension line〔名词〕延伸线,分机用户线详细»
extension line〔名词〕延绳线详细»
extension line〔名词〕分机线,尺寸补助线,延长线详细»
extension line〔名词〕引出线详细»
extension line〔名词〕引出线,分机线详细»
引出线cap;lead out;outgoing line;outlet;outlet line;pigtail详细»
引出线extension line;leading out详细»