2、观察在定态流动时，流体流过不同结构体的流线情况；并对边界层分离现象作一初步的分析了解。 1、装置可演示五组不同类型的边界：流道：突缩突扩+转子；流量计：孔板+文丘里；球形障碍：圆球+带尾翼球；折流挡板：圆环+圆缺形；列管排列：顺排+叉排。

Advancing reform to delegate power, streamline administration and optimize government services is essential to promote the sustainable and healthy development of the economy and society, Premier Li ...