反向流

The numerical results show that, after the hot intrusion reaches the cold wall, some accumulates in the cold top corner, since the cold boundary layer flow cannot entrain all of the hot intrusion.

结果表明：当热入侵流抵达腔体冷壁后，由于冷壁无法卷入所有的热入侵流，热入侵流在冷上角堆积并产生一个反向流动，在冷壁边界层附近形成一个顺时针涡，该涡在浮力效应驱动下可返回热壁，并在腔体的冷热壁之间形成了腔体尺度的流体振荡，即内重力波。

When the diode is reverse biased, only a negligibly small leakage current flows through the device until the reverse

当二极管反向偏置时，仅有很小的、可忽略的漏电流流过，除非是达到反向击穿电压。

When the diode is reverse biased, only a negligibly small leakage current flows through the device until the reverse breakdown voltage is reached.

当二极管反向偏置时，仅有很小的，可忽略的漏电流流过，除非是达到反向击穿电压。

An increase in the blood flow velocity of internal jugular vein,the abnormal acoustic frequency and its spectrum of TCD were signs indicated that the blood stream of CCF were drained by the superior and/or inferior petrous sinuses.TCD could detect the superficial sylvian vein where the blood flow velocity increased when the cortical veins were the main veins draining CCFs.

异常眼静脉搏动征，血流反向是诊断CCF眼上静脉引流的可靠指标；颈内静脉流速增高，声频及频谱异常是CCF血流经岩上窦、岩下窦引流的征象；当以皮层静脉引流为主时，颅内常可检出流速增高的侧裂静脉。

After analyzing the numerical simulation results of the impeller blade with different scale, and comparing the flow field distributing, then one kind of double-head anti-unsymmetrical S mode airfoils is found which is suitable to the normal and the reversed blowing for double directions under the design operating condition and which can also satisfy the requirement for the reversible axial flow fan in subway.

分析缩放比例不同的可逆式轴流风机叶型的数值模拟结果，比较各种叶型的流场分布规律，寻找到一种适合于设计工况下正、反双向吹风的双头双机翼反向不对称S型叶型，能够满足地铁用可逆轴流风机的要求。

One type of blade airfoil with high efficiency of a general axial flow fan is adopted as original airfoil, and it is shortened according to different length scale, and then joined to the exportation circular arc of the original airfoil in the opposite direction. Assuring the streamline on the surface of the blade profile after smooth operation, a new kind of double-head anti-unsymmetrical S model airfoils has been structured to be researched in this paper.

采用一种效率比较高的普通风机叶片翼型作为原始翼型，按不同长度比例缩小原始翼型，反向搭接在原始翼型的出口圆弧处，经过光滑处理，保证叶型表面的流线形后，构成本文所研究的新型双头双机翼反向S型不对称翼型。

The results of simulation show that a series of "second-vortex" are produced when streamwise "reverse-vortices" are effected by riblets. They weaken intensities of "reverse-vortices", and restrain the productions and developments of low-flow strips, so turbulent drag reduction is obtained.

仿真结果表明，沟槽表面与顺流的&反向旋转涡对&相互作用，产生&二次涡&，削弱了&反向旋转涡对&的强度，进而抑制了低速条带的形成和发展，从而降低湍流猝发强度，实现湍流减阻。

Reverse traffic can lead degradation of TCP performance. To resolve this problem, we analyze the impact of reverse traffic carefully, and obtain the relation between reverse traffic and TCP performance. We propose an approach of rate control optimized for unidirectional trip time, and design an algorithm for rate control, called Unidirectional Trip Aware Rate Control, UTARC.

针对反向数据流量会导致TCP性能下降的问题，本文详细研究了反向数据流量对正向数据流应答的影响，揭示了反向数据流量与TCP传输性能之间的联系，提出了面向单向延时优化的速率控制方法，并设计了相应的速率控制算法UTARC。

Through its unique reverse-flow layout, the 550i's V-8 engine is able to achieve higher output without correspondingly higher fuel consumption.

通过其独特的反向流布局，550i将会的V - 8发动机是不能够实现相对较高的油耗更高的输出。

Through the reverse transformation of dog and wolf, the two novels exhibit the two contrary results: Buck's return to nature is to challenge human civilization, indicating that the anthropocentrism dissolves while White Fang's going back to society is to reward the ecological justice of human being.

两部小说通过狗狼的反向流变展现了不同的人与自然关系所产生的两种截然相反的结果：巴克野性的回归是对人类文明的挑战，预示着&人类中心主义&的解体；而白牙野性的感化是对人类生态正义的回报。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。