基本解釋[動力與電氣工程]信號報警設(shè)備詞組短語短語Signalling and alarm equipment 信號和警報設(shè)備rack alarm signalling equipment 架信號設(shè)備signalling alarm equipment更多詞組專業(yè)釋義動力與電氣工程信號報警設(shè)備