便携式静电喷漆机
portable electrostatic painting machine
表面喷焊
surface sprayins and remelting
表面喷丸
peening the surface
Surface shot-blast treatment
表面喷雾
spraying onto the surface of paper
侧抽风喷漆室
spray booth of side exhaust
单膨胀斜面喷管
single expansion ramp nozzle