词汇	lower couch
释义	lower couch 下伏辊
随便看	safety and security major safety and soundness safety and stability safety and stability control system safety and trip system safety angle safety angle of inclination safety apparatus safety appliance safety appliance for motor vehicles SAFETY appliances attached to ladders safety application in foods safety apportionment safety appraisal safety appraisal of buildings Safety Appraisal of Lubao Sluice safety appraisement safety appraises safety appraising safety approval plate safety apron safety arc safety assurance number system Safety assurance obligation safety arch