您要查找的是不是:
- It is key problem to raise the top coal recovery rate of the fully mechanized sublevel caving mining. 提高顶煤放出率是综放开采的一个重大课题,预注水弱化顶煤是解决这一问题的有效方法之一。
- Study and test for recovery rate of the top coal in fully mechanized face using caving method and the methods for raising the coal recovery rate 综放面顶煤回收率试验研究及提高回采率的途径
- top coal recovery rate 顶煤采出率
- Ways of raising coal recovery rate in mire 提高矿井煤炭回采率的途径
- Influence of Gob Shield Angle on Top Coal Recovery Ratio 综放支架掩护梁角度对顶煤回收率的影响
- Composition of coal loss and the ways to increase recovery rate in fully mechanized top coal caving face 综放工作面煤炭损失构成及提高资源回收率途径
- Keywords millisecond blast;coal recovery rate;roof management; 毫秒爆破;煤炭回收率;顶板管理;
- Improving Top Coal Recovery Ratio in Full-mechanized Sublevel Caving Faces by Long-hole Controlling Presplitting Blasting Technology 利用深孔控制预裂爆破技术提高综放工作面顶煤回收率
- top coal recovery ratio 顶煤采出率
- coal recovery rate 煤炭回收率
- The average recovery rate is 98% to add tetramine into the samples. 样品加标平均回收率为98%25。
- Results:every group bacetrium recovery rate:ou higher than70%. 结果:各组菌回收率均高于70%25。
- The mean recovery rate was 103% and the CV was 4.3%. 平均回收率为103%25;变异系数为4.;3%25。
- The recovery rate of the treatment with azithromycin was 70%. 阿奇黴素治愈率94.;44%25,红毒素治愈率70%25。
- The average recovery rate of MgSO4 was 99.3% with RSD of 0.66%. 硫酸镁的含量测定,中药成分无干扰,平均回收率为99.;3%25,RSD=0
- The top coal's recovery ratio in fully-mechanized sublevel caving face controls the stowing degree of the goaf, thereby influences the stability of hard and massive overlying roof. 摘要综放采场顶煤放出率控制着采空区的充填状况,从而影响着大厚度坚硬顶板的稳定性。
- The average recovery rate of MgSO4 was 99.3 % with RSD of 0.66 %. 硫酸镁的含量测定;中药成分无干扰;平均回收率为99.;3%25;RSD=0
- The severe inclined thick coal seam,being its special geological storage conditions,is weakly extracted and the recovery rate is comparatively low. 急倾斜特厚煤层因其特殊的地质赋存条件,导致开采强度小,资源回收率低。
- The iron grade can be 54.16% and the recovery rate 92.46% after reductio... 经过还原处理的样品获得了较好的指标;铁品位54.;16%25;回收率92