英汉例句

• the expressions of velocity and flow rate of helical flow of a general viscous fluid has been obtained by using helical flow in a vertical annular space as an idealized flow model.

  本文用垂直同轴圆柱环形空间内的螺旋流流场作为鉆井井内流体流场的理想化模型，得出了任意纯粘性流体螺旋流流场的速度及排量表达式。

• this paper studies the flow law of the laminar helical flow of the power law fluid and billgham fluid in eccentric annular space and the determination of the flow state.

  本文全面地研究了幂律流体和宾汉流体在偏心环空中层流螺旋流的流动规律与流动状态的判别。

• a kind of device which can keep the casing at the center of borehole and can also generate helical flow of cement slurry, which is the spring whirlflow casing centralizer, is presented in this paper.

  提供了一种既能保证套管居中，又能产生水泥浆环空螺旋流的套管弹性旋流扶正器。

• this paper presents a detailed analysis of helical flow of bin-gham fluid in annular space.

  本文对宾汉流体螺旋流层流流场进行了理论分析。

• outside helical flow microfiltration assembly is a new kind of equipment by use of centrifugal force field to enhance permeate flux.

  外旋流管式微滤膜器是一种新型的利用离心力场作用强化渗透通量的装置。

• adopting helical flow displacement theory can overcome the disadvantage and greatly improve the displacement efficiency.

  使用螺旋流顶替理论能克服这一缺点，大大改善顶替效率。

• many problems in petroleum and chemical industry can be reduced to the solutions of the helical flow of non-newtonian fluid in eccentric annular space.

  石油和化工中许多问题需要求解非牛顿流体偏心环空螺旋流。