Sand production is an important factor, which affects oil well productivity.
出砂是影响油井生产能力的一个重要因素。
The enrichment factor of mainly absorbent element is also high under dust and sand weather conditions.
亲地壳元素中的主成分元素在有沙尘天气时，其富集因子也偏高。
The enrichment factor of sand aerosol which relate to crust and loess is the highest for absorbent sulphate and sedimental elements.
沙尘气溶胶相对地壳和黄土的富集因子，以亲硫元素和亲沉积层元素为最高。
The sand stratum in old river bed is important factor affecting stability of dam.
古河道砂层的存在，是影响围坝稳定的主要环境因素。
Mold material of rapid sand casting is one of important factor for realizing rapid sand casting.
快速砂型铸造用模具材料，是实现快速砂型铸造的重要因素。
Based on the statistical data for the sufficient degree of 137 sand bodies in Jiyang sag to calculate the characteristic value, and make the distribution map of factor loading.
根据济阳坳陷137个砂体充满度的统计数据，计算了特征值，作出了因子载荷分布图。
Sand production is an important factor affecting productivity of oil wells.
油藏开发过程中的出砂问题是影响产能的重要因素。
This paper has arrived at the compressive strength, shear strength, modulus of elasticity, poisson's ratio, moisture content, water absorption and softening factor of lime-sand brick masonry.
本文通过对灰砂砖及灰砂砖砌体的较系统的试验研究，得出了灰砂砖砌体的抗压强度、抗剪强度、弹性模量、泊桑比系数、含水率、吸水率及软化系数等。
Carried on the analysis to the lost wax casting craft sand hole defect creation factor.
对熔模铸造砂眼缺陷产生因素进行了分析。
The impervious wall of this project is located in water bearing sand and gravel, the collapse hole takes place due to some factor affect, the deep well lower water level measures are adopted.
本工程防渗墙在富含水砂卵砾石地层施工中，由于各种因素引起严重塌孔，施工中采用了深井井上降水措施。
It is demonstrated that the particle crushing is a main factor affecting the property of calcareous sand.
实践证明，颗粒破碎是影响钙质砂力学性质的主要因素。
The study of the hardening characteristics of reclaimed CO2 sodium silicate bonded sand shows that the residual sodium carbonate acetate is the primary affecting factor.
用CO_2法硬化水玻璃砂时，影响再生砂制备的型砂性能的主要因素是残留在砂粒表面的碳酸钠盐。
The sand-stone-mud padding of oil tank foundation is an important factor in uneven settlement of the tank basis.
油罐基础砂石土垫层是油罐地基发生不均匀沉降的重要因素。
The experiment error which altering barycenter of sand pendulum brings about is analyzed theoretically. And it is also an important factor comparing with others.
从实验误差理论角度，分析了沙摆重心变化引起的实验误差，结果表明由重心变化引起的误差相对于其它误差而言在实验中占主要地位。
According to this article, the cyclical change of the natural factors is the main factor to the Sand-Dust weather, while artificial factors make strengthen action.
分析认为，自然因子的周期变化是造成沙尘天气分布和变化的主要原因，人为因素起了加强作用。
The swatch values of friction factor of three kinds of precast buried heating pipe and backfilling sand is calculated.
通过对施工变量、运行变量的工程测量及计算得到三种规格的预制直埋供热管道与回填砂的摩擦系数样本值。
A new Measuring and controlling system of moisture ratio in molding sand based on two level closed loop control is presented, and setting method of temperature compensation factor is described.
提出了一种基于两级闭环控制的新型型砂水分控制系统，阐述了温度补偿系数的设定方法。
Efficiency of sand - pack fracture is main factor of determining the stimulation production. It is an effective method that has low cost, good result and pay more and more countries' attention.
填砂裂缝的有效性是压裂施工增产效果的决定因素，清水压裂作为一种成本低、改造效果好的经济有效增产手段越来越受到国内外的重视。
There are two basic causes. A main factor affected is the material-sand in producing brick, and the other important is water capacity of brick in building.
考察其原因，原料砂是影响其抗剪性能的主要因素，砌筑时砖的含水率是其重要因素。
The location at sand dune was also an important factor, and its effect was more obvious than that of density.
沙丘部位对林分不整齐性的影响作用要大于密度。
The level the anisotropic research, basing on the lamination factor, the sandstone density and the overlap coefficient describes the sand body growth and the distribution;
层间非均质性研究，通过分层系数、砂岩密度及重叠系数来描述砂层的发育与分布；
The authors believe that water accumulated on the surface of adhesion bridge neck from the sand-resin surface and atmosphere is a very factor to hot cracking tendency of resin coated sand.
环境湿度对覆膜砂铸型（芯）性能的影响是通过粘接桥界面上水分的积聚而起作用的。
The authors believe that water accumulated on the surface of adhesion bridge neck from the sand-resin surface and atmosphere is a very factor to hot cracking tendency of resin coated sand.
环境湿度对覆膜砂铸型（芯）性能的影响是通过粘接桥界面上水分的积聚而起作用的。
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