1、以自循环多流道组成显示屏，以化学溶液为工作流体，流、迹线由电控染色显示，经过实验区后，能自动消色，可长期自循环工作。 2、演示机翼绕流及升力方向的流线、迹线，演示十余种势流图谱与相关原理，如：圆柱绕流的流线，迹线及流场驻点、源、汇 ...

Regarding investment, the Hainan FTP aims to create a market-oriented, law-based and internationalized business environment with greater transparency. Foreign investment access will be relaxed further ...

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