日期:
来源:雅诚德英语网
Rare earth metals are scarce minerals that have particular properties, such as being magnetic or shining in low light.
稀土金属是非常珍贵的矿产资源具有特别的性能。比如具有磁性也可发光可以运用于微光灯。
Rare earth metals are scarce minerals that have particular properties, such as being magnetic or shining in low light.
稀土金属是非常珍贵的矿产资源具有特别的性能。比如具有磁性也可发光可以运用于微光灯。