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以速度环量形成应具的动力学条件与实际相对照;又从反映流体定向流动的基本定理对实际流况应具的支配作用作判断;再据对实际流动过程的逐步分析;俱表明:航行中的机翼并不存在速度环量,故升力与此无涉。并通过将定向流所必循法则,在流体流经机翼的过程中,具体化为可感性认知的流动规律,进而得出机翼升力就只是在连续性条件的支配下,绕流在上、下表面形成的压力差。
The velocity loop should be formed with the dynamic conditions should be compared with the actual; and from the fluid flow reflects the basic theorem of the actual flow should be the dominant role to judge; and then according to the actual flow of the process of progressive analysis; all show: Sailing wing does not exist speed loop, so the lifting force and no involvement. And through the law of the directional flow must be embodied in the process of fluid flowing through the wing, sensible perception of the law of flow, and then come to the wing lift just under the conditions of continuity under the flow around the Upper and lower surface of the pressure difference formed.