flow in tubes

• 管内流动

flow in tubes的用法和样例：

例句

1. The periodicity of the flow and heat transfer in a corrugated channel is numerically investigated.
   本文对锯齿型通道内流动与换热的周期性进行了数值模拟。
2. The measurement and study of the air flow in the cylinder is usually made under motored conditions.Only in very few cases,this study was carried out under firing conditions.
   通常在发动机倒拖工况下测量和研究缸内气流运动，对于燃烧过程中缸内流动规律的测量和研究还很少。