rare for对 ... 罕见的
rareadj.罕见的;珍贵的;煎得嫩的
rare earth complex monomer稀土配合物单体
rare earth activated glass稀土激活玻璃
rare earth zirconium alloy稀土锆合金
rare and endangered plants珍稀濒危植物
Rare and endangered breeds珍稀濒危品种
rare earth magnesium alloy稀土镁合金
rare earth Mg ductile iron稀土镁球铁