milk powdern. 奶粉
powder metallurgy粉末冶金
3.Powders with different particle could be prepared by adjusting process parameters.
通过调节过程参数,可以得到不同粒径的超细粉。
5.Some 3D printers spread metal powders on the print table and sinter the pattern with lasers or electron beams, rather than using masks.
比如一些3D印刷机在印刷台铺撒金属粉末之后,采用露光模板以外的激光或电子束方式进行热凝处理来产生样模。