I could tell you about sitting in a pub on Kings' Road and seeing a table of spike-haired kids starting a little fire in an ash tray with some lighter fluid.
Starting from N-S equations of fluid mechanics, the flow mathematical model of two-phase flow in pipe is established.
从流体力学中的N - S方程出发，建立了圆管两相分层层流的流动数学模型。
3
In any fluid handling system, valves are the controlling element: starting or stopping flow, regulating or throttling flow, preventing backflow, or relieving and regulating pressure.