词汇	ramp board
释义	ramp board 障碍赛滑板
随便看	volume of matrix volume of mesopore volume of metal consumption volume of metal tank volume of methane volume of migration volume of molecules volume of money volume of mound volume of movement volume of mud and sand volume of non-geosar traffic volume of nonpassenger ton miles volume of nonpassenger ton-miles volume of oil and gas conveyed by pipelines volume of order volume of organ volume of output volume of over-all trade volume of oxygen volume of packed cells volume of packed red blood cells volume of packed red cell volume of packed red cells volume of paint bottle