环形区的英文

• annular zone

• 环形:    annular; ringlike; ring form ...
• 区:    H region; H
• 环形区域:    annular area; annular region
• 活动环形区:    active aggulus
• 截头园锥环形区:    frusto-conical annular zone

例句与用法

1. Relaxation factors are adopted . a program is produced to simulate swirling air flow in a horizontal straight pipe and compare with experiment data . the simulation prove that the modified k - model can predict the core , annular and wall regions near entrance and axial velocity far from entrance , but it ca n ' t predict tangential velocity well in weak swirling area far from entrance
   编程计算水平圆管内螺旋气流的流动参数并与实验数据对比，结果表明修正-湍流模型在近入口处基本上能预测出中心区、环形区和近壁区的流动特性，在远离入口弱旋流区域对轴向速度的预测符合实际情况，但是出现对周向速度修正过大的现象。