词汇	welding in winter
释义	welding in winter 冬季施工
随便看	double-current catheter double current circuit double current detection double current differential duplex double-current differential duplex double current furnace double-current furnace double current generator double-current generator double current impulsing double-current impulsing double current key double-current key double current loop modulation double current method double-current method 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