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- Utilize sample apt to examine judging quota can set up the rank of ore rock cavablity by using BP neural network analysis ; solve the hierarchical precision problem of cavablity with bore informing. 利用样本中易测评判指标建立矿岩可崩性bp神经网络分析模型进行矿岩可崩性分级,解决了用钻孔资料进行矿岩可崩性分级精度不高的问题。
- This paper presents some concrete countermeasures by analyzing ore rock stability for pillar keep, mining series and multistage mining method of large tractmining secondary project. 本文对二期工作大面积开采范围的矿柱留设、开采顺序、多阶段开采等问题，通过矿岩稳定性分析提出了具体的对策。
- The ore dilution takes second place.When ore drawing is proportional by three drawing points, ore rock interface is short and dropped parallelly.The dilution and loss index are the fewest among them. 采用左中右三个出矿口均衡放矿时，矿岩界面最短且近似平行下降，矿石贫化与损失最少。
- THE CRATER TEST ON THE HARD ORE ROCK 极难爆矿岩爆破漏斗试验研究
- heterogeneous ore rock mass drawn 非均匀矿岩散体
- With a sudden output of effort he moved the rock. 他猛一使劲搬动了石头。
- Fuzzy Classification of Ore Rock Orientation by Neural Network 应用神经网络对矿岩的倾向性进行模糊分类
- Study on the Non-uniformity of Loose Body of Ore Rock 矿岩散体的非均匀度研究
- The ore is smelted in this large factory. 这个大型工厂里熔炼矿石。
- First, ore is mixed with coke and limestone. 先把铁矿石和焦碳、石灰石混合在一起。
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- We will make an assay of the ore that he brought. 我们将对他带来的矿石做实验鉴定。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年，长大后成了地质学家。
- With a sudden output of effort he moves the rock. 他猛一使劲搬动了石头。
- A bin for storing ore, grain, or other materials. 仓库储放矿石、谷物或其它材料的大箱
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭岩石。
- There are pockets of ore in the mountain. 那座山里有好几块矿藏。
- There are streaks of ore in the mountains. 这山里有矿脉。
- Iron ore has been discovered in the area. 这地区发现了铁矿。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
