词汇	letoff stand
释义	letoff stand n.导出装置
随便看	gravity trough gravity true specific gravity turn gravity type gravity type abutment gravity-type abutment gravity type air gravity-type air classifier gravity-type arch dam gravity type arc welding gravity-type arc welding gravity-type bank indicator gravity type boat davit gravity-type boat davit gravity type concrete mixing plant gravity type construction gravity type davit gravity-type davit gravity type fender gravity-type filter gravity type foundation gravity type grab gravity type models gravity type pawl gravity type quay