Boundary region

• 边界区

boundary region的用法和样例：

例句

1. Friction increases with increasing fiber surface roughness in the boundary and semiboundary.
   在边界和半边界区内，摩擦随纤维表面粗糙度的增加而增加。
2. Beyond the boundary layer, the motion is highly irregular.
   超出边界层以外，流体的流动非常没有规律。
3. Actual humidity measurements in the boundary layers have been made with a microwave refractometer.
   实际上已经用微波折射仪测定了边界层中的湿度。