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- Based on the technical and economical index, an optimal decision for the cutoff grade of ore drawing is presented. 在获取矿石技术经济指标的基础上，对截止放矿品位进行了优选政策。
- Optimizing Cut-off Grade of Ore Drawing in Pillarless Sublevel Caving 无底柱分段崩落法放矿截止品位优化
- Regular pattern of ore drawing in the case of recovery access and research of calculating cut-off grade of ore 回收进路放矿规律及截止品位确定方法研究
- Cut-off grade of ore drawing 放矿截止品位
- Research shows that main cause of ore dilution in sublevel caving mining is tlnrational cut-off grade drawing.Non-dilution ore drawing is most ideal drawing mede. 研究表明，造成无底柱分段崩落法来出矿石贫比大的根本原因在于采用了不合理的截止品位放矿方式，无贫化放矿是无底柱分段崩落法最为理想的放矿方式。
- He cut off a bunch of grapes to entertain us. 他剪下一串葡萄招待我们。
- Cut - off grade for ore drawing 放矿截止品位
- The slide cut off the valley from the rest of the world. 山崩切断了这个山谷与外界的联系。
- He cut off a metre of cloth from the roll. 他从那卷布上剪下一米。
- This machine can triturate wet or all kinds hard grade of ore and ofther material,especially can make many sizes sands. 适用于湿法细碎，粗磨各种硬度的矿石及其他物料，特别适用于人工造沙过程中调节细度模数。
- Mill grade of ore,recoveries and tailing grade are very correlative during dressing processes. 在选矿过程中,矿石的原矿品位、回收率、尾矿品位三者是密切相关的。
- We were cut off in the middle of our conversation. 我们正交谈时，线路被切断了。
- Please help me to cut off the rinds of lemons. 请帮我去掉柠檬的皮。
- The grade of playgorskite may be raised from 30.9% to 84.5% when sodium silicate solution is add in the course of ore dressing. 采用加入适量硅酸钠溶液的提纯流程 ;坡缕石矿石品位从30 .;9%25提高到 84
- 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。
- With mining capacity continuous increase and with mine entering into deep mining stage,the grade of crude ore and the grindability of ore decrease that raise the cost of grinding. 随着矿山规模的不断扩大和进入深部开采,矿石的原矿品位和相对可磨度逐渐降低,磨矿成本随之升高。
- The hunter cut off the animal's head with one chop of an ax. 猎人一斧砍下猎物的头。
- He cut off the flowers at the stalk with a pair of scissors. 他用剪子连花带茎都剪下来。
- The computer program may assist decision-making in the way of helping decision-makers to select scientificaly the average grade of ore in pithead heap-leaching mining under a total cost. 利用该经济评价模型开发的计算机软件，可以进行辅助决策，帮助决策人员科学地确定某一开发成本下坑口堆浸的矿石平均品位。
- Afraid of being cut off, they lost no time in turning back. 为怕给敌人切断，他们急忙撤了回来。
