automatic dam自动放水闸automaticadj.自动的；无意识的；必然的n.自动装置；半自动武器automatic ventilation自动通风automatic damping car自卸车automatic call device自动报警器automatic negotiation自动耦合automatic check-off[经] 自动扣除automatic action mine自发地雷automatic steelmaking自动炼钢automatic stop/run停复机automatic fast return自动快速返回automatic evaporation自动蒸发量