ҶˮͷĺûǴӵһ۵ģͭˮͷĺûҪϺͷоҪ⣬ˮͷĶƲʵҲǷdzҪ ͭˮͷıҪƹգȷƷʼչ¡ >=3um IJ>=0.6um
 
>=16um ڶͭ>=8um һͭ>=3um ģͭ ĵƲſʴã飬ԲԳ240СʱԲԳ48СʱгǿʴԲĥ