词汇	empty mapping
释义	empty mapping 空映射
随便看	lifting the leg lifting theorem lifting theory lifting the veil lifting-thrusting reinforcing-reducing method lifting-tilting type gate lifting time lifting time of boom lifting tong lifting tongs lifting tool lifting/towing/winding gear lifting trajectory lifting truck Lifting truck operator Lifting-truck operator lifting trunnion lifting trunnion for erection lifting tube lifting tube reactor lifting turbine cover lifting turbine rotor lifting type switch lifting undercarriage lifting unit