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- Model and its application on the evaluation of degree of difficulty of top coal caving in steep seam 急倾斜煤层顶煤可放性评价模型及应用
- Taking case teaching of management science should firstly select cases according to teaching targets,pay attention to the timeliness and difficulty degree of the cases. 在管理学教学中实施案例教学,首先要根据教学目的选择案例,注意案例的时效性,把握好案例的难易程度;
- 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。
- This paper makes statistical disposition and analysis on the age, grade, quality and difficulty degree of movement of trampoline match in the tenth national games. 摘要对十运会蹦床参赛运动员的年龄、成绩、动作完成的质量及难度等方面进行了统计处理和分析。
- The law of top coal movement on a fully mechanized longwall face with top coal caving wasanalysed thoroughly on the basis of field observation andfinite element calculation. 本文根据现场观测、数值计算以及理论分析,详细阐述了放顶煤采场的顶煤变形运动规律,指出了顶煤变形运动可划分成四个区:顶煤变形区,压裂区,松动区和放落区。
- The degree of difficulty is 2.0. 难度系数为2.;0。
- The movement of top coal and top roof is discussed with the data observed from the caving mining of deeply inclined thick coal seam with horizontal section in Zhaogezhuang colliery of Kailuan Group. 就开滦集团赵各庄矿在急倾斜厚煤层采用水平分段开采过程中的现场观测,探讨顶煤和顶底板运移。
- Plenty of top brass attended the ceremony. 有很多大官儿出席了典礼。
- The coal seam of No. 5102 face in Wuyang coal mine is steep, soft, and undulate.Aiming at this problem, the displacement and stress of top coal, roof and floor were researched by using UDEC software. 摘要针对五阳煤矿5102工作面倾角大、煤层松软、煤层起伏大、综放开采的条件,利用UDEC数值模拟软件分别通过沿工作面走向和倾向剖面建立模型,对顶板(煤)、底板的位移和应力变化进行了研究。
- She shows a high degree of skill in her work. 她在工作中表现出高度的技巧。
- Based on the gushing of gas, crack of top coal and "O" circle theory, the paper brings up the design for gas drawing and ventilation method, and designs the extraction method for high output workface. 为了解决影响实现万吨工作面的问题,通过对瓦斯涌出的分析,基于顶煤裂隙分布发育规律及“O”圈理论设计了瓦斯抽放及通风排瓦斯方式,设计提出了实现高产高效工作面的回采工艺。
- An artificial neural network for distinguishing the difficulty degree of roof coal caving of steep seam 急倾斜煤层顶煤可放性识别的神经网络模型
- A private car gives a much greater degree of comfort and mobility. 私人小汽车能给人很大的舒服和机动性。
- The highest degree of quality or excellence. 头等质量或优秀程度最高的
- Cutting Resistance Test of Hard Coal Seam and its Difficulty Degree of Digging Research 坚硬煤层截割阻力的测试和可刨性研究
- FRACTAL STUDY ON BLASTING ENERGY OF TOP COAL 综放顶煤爆破能量的分形研究
- Our teacher has a high degree of responsibility. 我们老师有高度的责任感。
- Fuzzy Comprehensive Evaluation of Difficulty Degree of Coal Resource Recovery Under Buildings 建筑物下煤炭资源回收难易程度模糊综合评价
- The curve fractal of top coal displacement 顶煤位移曲线的分形特征
- There is a degree of resemblance between the two boys. 这两个男孩有某些相似之处。