Phosphategypsum相关论文
Rare earth elements are present in more than 100 minerals,of which monazite,bastnaesite and xenotime are typical rar......
利用磷石膏为主要原材料,加入适当外加剂制成的磷石膏陶瓷材料,性能优良,抗压强度达80MPa以上,外观色彩美丽,配方中磷石膏占60% ̄80%。......