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- Mechanism of the rib spalling and the controlling in the very soft coal seam 极软厚煤层煤壁片帮与防治机理
- very soft coal seam 极软厚煤层
- Soft Coal Seam Winning in High Gas Area 高瓦斯区松软煤层沿顶布巷综放回采
- Theory and Practice of Gas Drainage in Fully mechanized Caving Working Face of Very Soft Inflammable and Very Thick Outburst Coal Seam 极软易燃特厚突出煤层综放面瓦斯排放理论及实践
- Research of bolting in soft coal seam with high earth stress 高地应力松软煤层锚杆支护应用研究
- Keywords very soft and very thick outburst coal seam;fully mechanized caving;internal misaligned arrangement;gas drainage; 极软特厚突出煤层;综放;内错布置;瓦斯排放;
- Besides, it's make of pure wool, very soft. 另外，这是纯羊毛的，手感柔和。
- Roof Control of Tunnls of Full-mechanized Caving Mining Face in Soft Coal Seam 软煤层综放工作面两巷顶板管理
- It's make of pure wool, very soft. 这是纯羊毛的，非常软。
- Foam Fluid's Application on Drilling in Soft Coal Seam for Gas Drainage 泡沫冲洗液在松软煤层中钻进瓦斯抽放孔的应用
- She likes to wipe the windows with a very soft cloth. 她喜欢用一块非常软的布擦窗子。
- Study on technique of coal seam infusion in soft coal at Xiandewang Coal Mine 显德汪矿软煤层综采工作面煤层注水工艺研究
- Don't use much soap powder the water here is very soft. 肥皂粉别用得太多，这儿的水很软。
- Analyzing the layout and the construction of the cut in top-coal caving face of soft coal seam 软煤层综放切眼布置设计及施工工艺探析
- He whistled an air very softly to himself. 他自个儿用口哨轻轻地吹著一支曲子。
- Top coal caving technology in high inclination-angled soft coal seam with hard roof and soft bottom 坚硬顶板软煤软底大倾角综放开采技术
- Innovation and Application of Deep-hole Drilling Technology in Outburst Soft Coal Seam 突出松软煤层深孔打钻工艺的创新与应用
- The fuzz of the toy bear is very soft and pretty. 玩具小熊身上的绒毛十分纤柔秀美。
- Applied Study of Secondary Support Technique for Development Roadway in Soft Coal Seam 软煤层开拓巷道二次支护技术的研究
- It's made of exceptionally good quality, very soft. 这件衣服质量特别好,非常柔软。
