second-order fluids是什么意思

用法例句

In this article,on designing PRB7-200/100/25/31 emulsion pump,we adopt the design method of two_stage flow,which adopts stage columnar plug structure and two_stage flow method.

以PRB7— 2 0 0 / 10 0 / 2 5 / 31 5型乳化液泵为例 ,介绍一种二级流量泵的设计方法 ,该泵采用阶梯柱塞结构 ,两级供液方

The Research of 2-stream and 3-stage Dimpinging Stream Drying Mechanism;

二流三级撞击流干燥机理的研究

Theoretical and experimental researches are exected to investigate the anti-cavitation and wire-drawing characteristics of two-step throttle when using tap water as the working medium.

由两个节流口组成的二级节流或防止或减轻水压阀汽蚀的有效结构形式。