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- sand flow method 砂流法
- Can sand flow upward in the hourglass? 时光会倒流吗
- Improved optical flow method and its application in the study on FAE[J]. 引用该论文 周维;鲍远律;于俊;邓明之.
- The airflow and the sand flow were taken as continuous flow bod y for study object in mathematical pattern. 在数学模型中，把气体和砂粒作为研究对象，并且将它们都看作连续的流体。
- Looking up from under the Shapotou, who took the sand flow, "Fei Liu thousand feet down," such as from heaven. 从沙坡头下仰望，人乘沙流“飞流直下三千尺”，如从天降。
- According to Newton-Raphson(NR) method, a new power flow method based on reliable power flow technique is proposed. 摘要根据牛顿法的基本原理，建立了一种基于辐射配网潮流技术的求解有环配电网潮流的新模型。
- To overcome it, a developed technology was to inject artificial gravels into oil formation to make the gravel screen to prevent sand flow. 为此研制出地层深部充填防砂技术,该技术是向油层中注入人工砾石,由其所形成的砾石屏蔽来阻挡地层出砂。
- Costs and returns for orchards at the above densities were examined by the cash flow method of analysis. 上述密植园的成本和收益是用现金周转分析方法决算出来的。
- Several mud and sand flow accidents occurred from the goaf to mining face,which had seriously affect to the mine safety production. 梅河四井为急倾斜特厚煤层,采用水平分层综合机械化放顶煤开采,曾经多次发生采空区泥砂流溃入工作面事故,严重影响了安全生产。
- THE EFFECT OF AIR FLOW METHOD TO THE MATHEMATICAL MODEL OF TRIPLOID OF POPULUS TOMENTOSA CARR. 三倍体毛白杨渗透率数学模型的研究。
- Sand flow of water and sand as the proportion of different trajectories and the flow of sand from the line, could accelerate the occurrence of cavitation. 含砂水流由于水与砂的比重不同，砂粒运动轨迹与流线脱离，可能会加速汽蚀的发生。
- The counting process of load cycles is fulfilled to make use of "the raindrop flow method". 采用雨流法完成载荷循环计数过程，并使该过程实现可视化。
- Based on multi-port network theory and Norton equivalence theorem, this paper presents a new multiterminal HVDC power flow method. 以多端口网络理论和诺顿等值定理为基础，提出了一种新的电力系统多端直流潮流算法。
- This method that can sensibly evaluate diastole function of left ventricle is better than traditional mitral flow method. 该方法对左心室心肌舒张功能的评估更加敏感，优于传统的二尖瓣口血流法。
- At present,the appropriation value evaluation method in corporation merges is discount cash flow method and asset value baic method. 目前比较适合国情的企业价值评估方法是贴现现金流量法和资产价值基础法。
- Then the equations for velocity distribution along vertical direction of the dry sand flow and that for velocity of sand mass sliding along the subface and top surface are derived. 将干砂流视为连续介质的流动,对干砂流的运动动力和阻力进行了深入研究,建立了干砂流垂线流速分布方程和干砂流体底面、表面滑动速度方程。
- Adopted gene flow method and applied special breeding scheme software ZUPLAN to analysis the breeding effect of current Merino sheep breeding scheme. 采用基因流动法应用育种规划专用程序ZUPLAN分析研究了细毛羊现行育种方案的育种成效。
- In this paper,a simplified Newton Raphson Power Flow method with Jacobin Mattrix is proposed in order to decrease the convergence time. 提出了一种利用简化潮流雅可比矩阵来缩短牛顿-拉夫逊潮流计算收敛时间的方法,并通过算例验证了其有效性。
- Oh, give me a land where the bright diamond sand Flows leisurely down the stream; Where the graceful white swan goes gliding along Like a maid in a heavenly dream. 哦,给我一片地,钻石金沙顺流走;雪白天鹅水中嬉,可是仙女下凡舞?
- Casing deformation takes place in these geological environments such as plastic rock layer, fault zone, active lithosphere zone, earthquake zone and the place where sand flows. 分析了油井套管损坏的地质环境,指出在塑性岩层、断层、地壳活动、地震活动及油层出砂等地质环境中易造成油井的套管损坏。
