浮石磨粉

[医] 浮石粉

police power───警察权，治安权；警察部队

face powder───擦脸香粉；扑面粉

fine powder───细粉；超微粒

milk powder───n.奶粉

piepowder───分页器

police powers───警察权（policepower的复数）；警察职权

putty powder───n.氧化锡粉（等于油灰粉）

dusting powder───撒粉于胶上；隔离剂

pumice country───浮石区

As long ago as 5000 BC the Egyptians were making a tooth powder consisting of powdered ashes of ox hooves, myrrh, powdered and burnt eggshells, and pumice.───早在公元前5000年，埃及人就在制作牙粉，其成分包含牛蹄粉灰、没药、粉状和烧焦了的蛋壳以及浮石。