Based on that, the formulae of lithology factor and time factor of load transmitting were established. By means of these formulae, the problem of load calculation for roof key block can be solved.
提出了载荷传递因子的概念，给出了卸荷拱高度的计算公式和载荷传递因子的计算公式，解决了关键块上的载荷计算问题。
Factor of soil circumstance was an index of rocky desertification type and indicated the spatial difference of lithology.
土壤环境因子表征了石漠化在空间上岩性的差异特征，是石漠化类型的表现指标。
In Tazhong Area, the main factor of impacting average velocity is the depth of stratum and lithology of igneous.
在塔中地区，影响平均速度的主要因素是地层埋深和火成岩的岩性。
Loess lithology is an intrinsic factor of suffosion erosion, while climate, groundwater, structure, vegetation and manmade diathesis all are exterior factors.
黄土的岩性是黄土具有潜蚀能力的内在因素，而气候、地下水、构造、植被以及人为因素是其外在因素。
Rock shear strength value c, which reflects stratum lithology is the most fundamental factor, and it is affected by other factors.
地层岩性的抗剪强度指标是最根本的因素，且受其它诸因素的影响。
Lithology is the key factor impacting pore types, pore structure, physical properties of the reservoir and gas-containing property.
岩性是影响储层孔隙类型、孔隙结构、储层物性和含气性的主要因素。
Lithology is the key factor impacting pore types, pore structure, physical properties of the reservoir and gas-containing property.
岩性是影响储层孔隙类型、孔隙结构、储层物性和含气性的主要因素。
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