1)unstable coal seam不稳定煤层
1.Longwall mining along the dip of the unstable coal seam and strata control;不稳定煤层倾斜长壁开采及矿压控制
2.According to the analysis of the feature and origin of unstable coal seam,the article introduces the corresponding methods of developing and mining district preparation,which provide a technological reference for extracting unstable coal seam.通过不稳定煤层的特点及成因分析,采取与之相适应的开拓及采区准备方法,为开采不稳定煤层提供了参考。
3.The raining of unstable coal seam is a thorny thing for miner.不稳定煤层的开采,历来是采矿工作者的棘手问题。
英文短句/例句
1.Longwall mining along the dip of the unstable coal seam and strata control不稳定煤层倾斜长壁开采及矿压控制
2.Research on the Prediction Methods of Surface Movement and Deformation in Unstable Seam不稳定煤层地表移动变形预测方法研究
3.Application of Oblique Sublevel Positive-Step Mining Method on Steeply-inclined Unstable Seam急倾斜不稳定煤层斜分段正台阶采煤方法的运用
4.Design of Key Components of Hydraulic Roof Support Mining Total Height under "Three Soft" and Unstable Coal Seam三软不稳定煤层一次采全高液压支架关键部件设计
5.Analysis on Stability of Coal Pillar in Goaf Area of No.11 Seam in Tangshangou Mine唐山沟煤矿11号煤层采空区煤柱稳定性分析
6.Fuzzy Comprehensive Evaluation and Prediction of Coal Seam-roof Stability Based煤层顶板稳定性模糊综合评判和预测
7.Stability analysis of basic roof in fully-mechanized top-coal caving mining of the steep seam急斜煤层综放开采中基本顶的稳定性
8.Research on in-situ stresses and borehole stability of coal seam in Jingbian gas field靖边气田煤层地应力及井壁稳定研究
9.Study on stability of main seam roof in dongjiahe minefield澄合董家河井田煤层顶板稳定性评价
10.Stability evaluation of mine goaf with multi-coal seams and complex landform复杂地貌多煤层采空区的稳定性评价
11.Research on the roadway stability under closed distance seam group近距离煤层群开采下巷道稳定性研究
12.Evaluation method for pillar stability during strip mining in multiple coal seams多煤层条带开采煤柱稳定性评价方法研究
13.Analysis on Stability of Supports in Coal Mining Face in High Inclined Seam of Guishan Mine圭山煤矿大倾角煤层采场支柱的稳定性探析
14.Stability Analysis of Mining Gateway under Seam Group Mining with Closed Distance Between Seams in Cuijiazhai Mine崔家寨煤矿近距离煤层群开采巷道稳定性分析
15.The research on the content of fly ash on cement fly ash stabilized road base水泥粉煤灰稳定砂砾基层的粉煤灰掺量研究
16.SIMULATION OF CLAY AQUIFUGE STABILITY OF WATER CONSERVATION MINING IN SHALLOW-BURIED COAL SEAM浅埋煤层保水开采隔水层稳定性的模拟研究
17.Study on the Coal Pillar Stability of Deep and High Seam Strip-Partial Mining and Its Impact on the Village in Gucheng Coal Mine;古城煤矿深部厚煤层条带开采煤柱稳定性及对村庄的影响研究
18.Study on Stability of Flat Coal Layer in Xi Shanping Tunnel;西山坪近水平煤系地层隧道围岩稳定性研究
相关短句/例句
inclined and unstable seam倾斜不稳定煤层
1.Introduced the technical experiences and the main safe measures as will as the technical and economic benefits adopted in sublevel caving mining with blasting method appied to 27°-32° inclined and unstable seam in Baimiao coal mine.介绍了白庙煤矿在２７°～３２°倾斜不稳定煤层中采用炮采放顶煤开采的技术经验、主要安全技术措施及取得的技术经济效果。
3)"three soft " and unstable coal seam三软不稳定煤层
4)"three soft" unsteady thick coal seam"三软"不稳定厚煤层
5)unstable layer不稳定层
6)coal bed's stability煤层稳定性
延伸阅读
稳定/稳定浴分子式：CAS号：性质：照相中的稳定作用是指防止感光材料在保存过程中由于药膜中残留药液的作用而引起的暗褪色、色污染及霉变等弊病。通过正常冲洗或无水洗加工最后一个工序——稳定工序，可稳定照相影像，使之不变或变化极小。能起稳定作用的浴液称稳定浴。无水加工中的稳定浴主要由pH值控制剂、铁隐蔽剂、防霉剂、坚膜剂、软水剂、有机助剂等组成。
