词汇	light rigid conduit
释义	light rigid conduit 轻质硬导线管
随便看	double current operation double current relay double-current relay double-current repeater double current return to zero system double current signal double-current signal double current signaling double-current signaling double-current signalling double current simplex double-current simplex double-current simplex circuit double current sounder double current source double current system double-current system double -current system double current telegraph double-current telegraph double current transmission double-current transmission double current working double-current working Double curtain Wall