词汇	dam board
释义	dam board 挡板
随便看	negative pressure slidernps negative pressure slider nps negative pressure-spray negative pressure suction Negative-pressure syphon Negative Pressure System Negative Pressure Therapy Negative pressure therapy for wound negative pressure transducer negative pressure trousers Negative pressure tympanogram Negative pressure tympanograms negative pressure vacuum hot wall furnace negative pressure valve negative-pressure valve negative pressure ventilation Negative-Pressure Ventilator Negative Pressure Ventilators Negative-Pressure Ventilators negative pressure wave negative-pressure-wave negative pressure wave law Negative pressure wound therapy negative press wave negative price scissors