Majormetal minerals in ore are pyrite, sphalerite and galena.
黄铁矿、闪锌矿及方铅矿为矿石中的主要金属矿物。
2
The oxide percentage of majormetal elements such as Cr, Ni and Mo were higher, especially Cr.
氧化膜中铬、镍、钼等主要元素氧化成离子的比例较高，铬尤为明显。
3
Objective To study the shape, thickness and oxide percentage of majormetal element of oxide film on Ni-Cr porcelain alloy after anodizing pretreatment.