the opencast working of vanadium mine

• 钒矿露天开采

the opencast working of vanadium mine的用法和样例：

例句

1. Taking the rockfalls at Hundong Lead-Zinc Mine as an example, the influence factors and the rockfall movement route are analyzed.
   结合会东铅锌矿露天边坡滚石问题，对滚石产生的影响因素，滚石运动轨迹及滚石与坡面的相互作用进行分析。