... funnel-type guide frame具漏斗形承口的导向架 underground milling地下放矿漏斗开采法 He funneled the oil into the bottle.他用漏斗把油注入瓶中。 ...
双语例句
1
Taking maximum net present value as an optimum target and considering factors in mining, milling and metallurgy, a dynamic optimum method for optimizing cutoff grade of underground orebody is given.