single-phase flow造句

• The experiment of single - phase flow through low permeability core shows that during fluid flow there exists start - up pressure gradient
  摘要低渗透岩心单相渗流实验表明，流体渗流时存在启动压力梯度。
• The device consists of a single - phase flow test device , which can make a real simulation of the downhole working conditions and the flow of the liquid in the subsurface pump , and a miscible - phase flow test device , which can simulate various oil - gas ratios
  这种装置由单相流试验装置和混相流试验装置构成，前者能比较真实地模拟井下的各种工况和抽油泵内液体的流动状态，后者可模拟不同的油气比。
• It is very difficult to measure some process parameters during two - phase flowing , such as flow status , concentration , flux , particle size and so forth , because the flowing rules of gas - solid two - phase flow is more complex than that of single - phase flow , together with interphase effect between every phase
  由于气固两相流动规律比单相流动的流动特性更复杂，且各相间的界面效应等原因，致使对两相流动过程参数(如流态、浓度、流量和粒径等)的检测难度很大。