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- With the depravation of geology condition in colliery, the roadway distortion with small protection pillar increases distinctly and it is hard to meet production need. 但随着煤矿地质条件的不断恶化,采用小煤柱护巷技术的巷道变形量明显加大,难以满足生产要求。
- PROTECTION PILLAR STABILITY NUMERICAL SIMULATION IN SHALLOW SEAM COVERED WITH ROCK SOIL AND SAND 砂土基型浅埋煤层保水煤柱稳定性数值模拟
- She subscribes to an animal protection society. 她捐款给一个动物保护协会。
- Keywords protection pillar;thrust block;permeable fracture;numerical simulation;geostatistics; 保护煤柱;推覆体;导水裂隙;数值模拟;地质统计;
- We subscribe to an animal protection society. 我们定期捐款给一个动物保护基金会。
- High Pretightening and Strength Bolt and Rope Supporting Research and Application in Cracked, Loose and Soft Roadway with Small Protection Pillar 松软破碎煤体小煤柱护巷高预紧力强力锚杆锚索支护研究与应用
- The young in our society need careand protection. 我们社会的年轻人需要受到关怀和爱护。
- He was paying out half his profits as protection. 他把所得利润的一半交给歹徒作为保护费。
- They lobbied on the environmental protection issue. 他们就环境保护问题在议员中进行了游说。
- A thin jacket is a poor protection against cold. 一件单薄的夹克衫不足以御寒。
- The settlers banded together for protection. 移民联合起来保护自己。
- Making trial of mining the protective pillar at main conveying roadway 开采主运巷保护煤柱的一次成功尝试
- Study on Mining Scheme of Protecting Pillar of Coal Mine under Village 某矿村庄下煤柱开采方案研究
- He's devoted his whole life to the protection of the rare animals. 他终生献身于珍稀动物的保护。
- A thin coat gives little protection against the cold. 一件薄上衣没有什么御寒作用。
- The monitoring data analysis of geopressure during stoping of protecting pillar 保安矿柱回采地压监测数据分析
- Any payment exacted for protection. 勒索的钱财强逼某人支付的保护费
- A place offering protection and safety; a shelter. 避难所提供保护及安全的场所; 庇护所
- She put on dark glasses as a protection against the strong light. 她戴上墨镜以防强光的照射。
- The ships required the protection of naval and air power. 船只本身需要海军和空军的保护。
