The technology of undersea mining was then undeveloped . 那时候深海采矿技术还不成熟。
Large mining equipment cannot be operated on narrow benches . 大型采矿设备不能在窄台阶上操作。
In england he had seized a great mining corporation without investing a shilling . 在英国,他没有投资一个先令,居然把一家规模宏大的采矿公司弄到了手。
Unfortunately, though, he became involved in a dubious mining venture in which several british acquaintances lost heavily . 不幸的是,他同一个可疑的采矿生意有牵连,使几个英国朋友着实破了钱财。
In the course of drilling, mining and deposition of hear producing materials in the subsurface, the original natural geothermal field is disturbed . 在钻井,采矿和发热物质的地下深积的过程中,原始的天然地热场受到了扰动。
Only mining and agriculture experience higher rates 只有采矿和农业比率高过它。
Study on the evaluation method of value of mineral right 采矿权价值评估方法研究
An experimental study on high sublevel mining technology 高分段采矿技术试验研究
- a mining colony ? - yeah , a tibanna gas mine -一个采矿区? -没错,提巴那瓦斯矿