The vortices that are formed on the tangential section, there existed mass transfer between inner and outer parts of fluid.
环隙切剖面上形成的涡，其内部流体都要与涡外部的流体进行质量交换。
Wood rays of p. armand and p. prokoraiensis on tangential section both had two shapes that was uniserial wood ray and spindle wood ray.
华山松与前红松弦切面上的木射线均呈两种状态，即单列木射线和纺锤形木射线；
The results showed that the radial frequency was greatly affected by the height of the cross-section, but the tangential frequency wasn't.
结果表明：截面高度对径向振动频率有显著影响，但是对切向振动频率影响很小；
The aim of this paper is to study the effects of normal and tangential blowing on the side force of forebodies with different cross section.
讨论了迎角、吹气方式、喷管指向角及截面形状对机身侧力的影响。
The aim of this paper is to study the effects of normal and tangential blowing on the side force of forebodies with different cross section.
讨论了迎角、吹气方式、喷管指向角及截面形状对机身侧力的影响。
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