In S, H,?Three volume settings, P value is, the higher the speed of the jet stream, the higher the efficiency of sandblasting, the rough surface processing the contrary, the relatively smooth surface.

• 在S、H、?三个量设定后，P值越大，喷射流的速度越高，喷砂效率亦越高，被加工件表面越粗糙，反之，表面由相对较光滑。