分布系数

This paper through indoor physical model experiments, studied the coefficient of permeability variation, a multiple of polymer solution into the pore volume, polymer molecular weight and polymer concentration on the remaining oil after polymer flooding potential and distribution.

本文本文通过开展室内物理模型实验，研究了渗透率变异系数、聚合物溶液注入孔隙体积倍数、聚合物分子量和聚合物溶液浓度对聚合物驱后剩余油潜力及分布的影响。

Air pressure distribution on sur-face of train(3 cars)and aerodynamic drag coefficient are obtained with sim-plified bogies and pantographs in calculations. Computational results are alsocompared with those given by model test in wind-tunnel.

计算中对转向架和受电弓处作了简化处理，得到了三车编组情况下列车表面压力分布及气动阻力系数，并与列车模型风洞实验结果进行了对比。

There is closely relation between polynomials with non-negative coefficients and normal distribution.

一个非负系数的实零点多项式与正态分布也有着密切的联系。

With the increase in the downwash flow velocity, the entrainment coefficient decreased, and the exhaust flow temperature increased, resulting in the rapid increases of the exhausting duct temperature and the suppressor surface temperature.

旋翼下洗气流速度的增加，将造成红外抑制器的引射系数降低，出口气流温度升高，出口气流温度分布均匀度增加，并使整流罩及外套特征温度迅速增加。存在一个最佳旋翼下洗气流速度，使储物仓特征温度最低。

The distribution of abnormal high pressure is relative to Eogene gypsolith and salt layers.

库车坳陷异常高压呈东西向带状分布，中部克拉苏-东秋-迪那构造带的地层压力系数在2.0以上，往南北两侧递减。

The interaction of electromagnetic wave with fractal surface is computed. Statistic Kirchhoff solution is found analytically and experimentally.

研究了粗糙表面的电磁散射特性，用基尔霍夫近似法计算了散射系数，得到了散射能量的角分布。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。