tourmaline powder

• 电气石粉

tourmaline powder的用法和样例：

例句

1. The organic surface modification of tourmaline powder,an environment material,with sodium stearate as the modifica-tion agent was studied by mechano-activated method.
   研究了机械力化学法对天然环境矿物电气石粉体进行的表面有机化改性。