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- ore and rock stability 矿岩稳定性
- The stability of ore and rock in Lianjiang Silver Mine is very poor so that an overhand slice and drift mining with cemented tailings filling was used for mining. 廉江银矿的矿岩稳固性很差，采用上向进路尾砂胶结充填采矿法。
- At Fengshan copper mine,the stability of ore and rock was poor and varied, and the stopes were located under the steep slope of high mountain, where the high stress was concentrated. 丰山铜矿矿岩稳固性差，变化较大，且采场位于高山陡坡之下，属于高应力集中区，巷道支护困难。
- A writer has found a small deposit of manganese ore and rock specimens flecked with uranium or stained green by copper. 一名作家还发现了一个不大的锰矿堆积体和一些粘染有铀痕迹或者带着铜绿斑痕的矿石标本。
- Blasters in this unit group fill blast holes with explosives and detonate explosives to dislodge coal, ore and rock or to demolish structures. 爆破员用炸药填补爆破洞，然后引爆炸药提炼出煤炭，矿石和岩石或粉碎建筑物。
- Author discussed geological characters of vein rock and co-relation with auriferous mineralization, and indirectly concluded the relationship of auriferous ore and rock body. 从岩石学、岩石化学、微量元素、同位素等方面讨论了脉岩的地质特征及其与金矿化的关系，可间接推出金矿与岩体的关系。
- The low dilution mode of ore drawing requies that ore quality management be suited to the feature of ore and rock movement during ore drawing in sublevel caving. 无底柱分段崩落法低贫化放矿方式要求限制废石漏斗在出矿口的破裂。
- This paper deals with original schemes of ore and rock haulage,existing production situation and the problems necessary to be solved in plan of technological transformation in Longyan Kaolin Co. 介绍了龙岩高岭土公司矿石和废石运输的原设计方案、生产现状和技改设计中须解决的问题。根据矿山的实际情况,推荐了矿石和废石运输的可行方案,并阐述了它们的优缺点。
- According to this cutoff grade, the paper has calculated the ratio of ore and rock while cutoff drawing that provide science foundation for the drawing of Xiaoguanzhuang iron mine. 据此计算了截止放矿时的矿岩比,为小官庄矿放矿提供了科学依据。
- Class B: rock ore appraisal and rock ore testing. 68810912乙级：岩矿鉴定与岩矿测试。
- A mass of snow and rock break away and fall on the climber. 一堆积雪和岩石突然崩落到登山者的身上。
- Keywords Ore and rock Drillability Blastability; 矿岩;可钻性;可爆性;
- the productiofi capacity of ore and rock 矿岩生产能力
- They analyzed the ore and found iron in it. 他们分析了矿砂,从中发现了铁。
- A mixture of crushed ore and water. 矿浆碾碎的矿石与水的混合物
- A mass of snow and rock broke away and fell on the climbers. 一堆积雪和岩石突然崩落到登山者的身上。
- The limestone absorb impurity from the ore and form a fluid slag which floats on the surface of the heavier molten iron. 石灰石吸咐了铁矿石中的杂质，形成浮在较重的铁水表面上的流动渣。
- Ore and coal had been barged down the Ohio to the Mississippi. 矿砂和煤已被用驳船沿俄亥俄河运载到密西西比河。
- Comets are usually made of ice and rock. 彗星通常是由岩石和冰构成的。
