英语翻译4.HOODANDDUCTDESIGN4.1.TheoreticalConsiderationsTheactualflowcontoursandstreamlinesforairflowintoacircularductopening,representingasimplehood(14),areshowninFig.15.Thecontoursinthefigureareexpressedaspercentage

Question

英语翻译
4.HOOD AND DUCT DESIGN
4.1.Theoretical Considerations
The actual flow contours and streamlines for airflow into a circular duct opening,representing
a simple hood (14),are shown in Fig.15.The contours in the figure are
expressed as percentage of the velocity at the opening.The lines of constant velocity are
contour lines,whereas those perpendicular to them are streamlines,which represent the
direction of airflow.It should be noted that the hood in Fig.15b has a flange.

Answer 1

4.敞篷和输送管设计
4.1.实际
流程为气流塑造外形并且简化入一个圆输送管开头的理论考虑,代表
一个简单的敞篷(14),显示在.15.等高在图
被表示为速度的百分比在开头.恒定的速度线是
等高线,而那些垂线对他们是流线,代表气流的
方向.值得注意的是,敞篷在Fig.15b有耳轮缘.