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- in seam gateway heading 煤巷掘进
- Survey and determination on roof strata structure in seam gateway 煤巷顶板岩层结构的探测与确定
- Design and construction of high pressure water gate wall in seam gateway 煤层巷道高压水闸墙的设计与施工
- Research on deformation law of bolt support in seam gateway near fault 锚杆支护近断层煤巷变形规律研究
- seam gateway heading face 掘进工作面
- Cause analysis and prevention of failed bolt support in seam gateway of Dayan mining area 大雁矿区煤巷锚杆支护失效原因分析及预防
- In view of the problems occurring in trapezoidal support used in coal seam gateway, a novel small-curvature arch support for mining engineering is presented. 针对煤层顺槽梯形支架存在的问题，提出一种新型结构的小曲率拱型支架。
- He was sitting with his head buried in a book. 他坐着埋头看书。
- He batted the idea around in his head. 他脑子里反复思考这个想法。
- The guilty man bowed his head in shame. 那个有罪的人羞愧地低下了头。
- STRUCTURAL FEATURES OF COAL BODY IN SEAM NO.8 AND REGIONAL PROGNOSIS OF COAL AND GAS OUTBURST IN PANJI MINE NO. 潘一矿8煤层煤体结构特征及煤与瓦斯突出区域性预测。
- You must be weak in the head if you believe that. 你相信那件事可就太傻了。
- He went to grass after being hit in the head. 头部被猛击一下后，他颓然倒下。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- Bolt Support Technology for Seam Gateway Applied in Du'erping Mine 煤巷锚杆支护技术在杜儿坪矿的应用
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- Research on new roof rock structure probe of seam gateway 新型煤巷顶板岩层结构探测仪的研究
