4. The results show that the parallel-flow cycle yields the highest coefficient of performance among the cycles while the maximum pressure and temperature in the reverse-flow cycle are lowest.
5. Methods:( 1 ) The morphologic changes of micrangium between the reverse-flow random flap with SVT and no SVT in different phase were observed by using optical microscopy, stereological methods.
6. The reverseflow, from developed to developing countries, is on the rise, too.
从发达国家到发展中国家的反向流动也在增加。
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7. Somehow, we've got to reverse the money flow.
不知为何我们已经让货币倒流了。
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8. There may be some reverseflow from cities to countryside as life in the latter dramatically improves.
当农村生活极大地提高的时候，将会有从城市到农村的逆转潮流。
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9. Cold leg recirculation mode will provide long term cooling for the core and hot leg recirculation mode will be used alternately provide reverseflow to the core.
冷段再循环给堆芯提供长期的冷却，热段再循环用于交替地给堆芯提供反向流。
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10. Export pump with check valve, it will immediately turn off to prevent reverseflow back high-pressure water pump.
水泵出口装有逆止阀时，它会立即关闭，防止高压水反向流回水泵。
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11. The float shoe prevents reverse flow, or U-tubing, of cement slurry from the annulus into the casing.
浮鞋能够防止环空中的水泥浆向套管内流动这种回流或者U型管效应的发生。
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12. When the pressure difference changes with time, a phase shift will occur between the transient pressure difference and displace of valve flap, which could cause leakage and even reverseflow.
13. Requirements: Valve must be tight against reverse flow under all pressure differentials.
要求：在所有压差下，阀门对于回流必须是密封的。
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14. Purpose: To test valve No. 1 for tightness against reverse flow.
目的：检测1号止回阀对于回流的密封性。
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15. The variation of local friction coefficient is similar to velocity and local minimum value occurred in reverseflow area.
摩擦阻力的变化趋势与速度类似，在产生逆向流处出现局部极小值。
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16. Requirement: Valve must be tight against reverse flow.
要求：这种阀门对于回流必须密封紧密。
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17. On the basis of geometric dimension and flow pattern of tangential reverseflow cyclone separators, a pressure drop mathematical model is presented through analysis of pressure drop components.
根据切向反转流旋风器的结构特性和流场特性，分析了该种旋风器的阻力构成并给出了相应的计算模型。
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18. Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinders. Use a check valve to prevent reverse flow into the cylinder.
使用减压调整器或单个的控制阀来安全地从钢瓶中排出气体。采用止回阀，防止回流入钢瓶。
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19. Purpose: To test check valve No. 2 for tightness against reverse flow.
目的：检测止回阀2号对于回流的密封性。
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20. Series 709 Double Check Valve Assemblies are designed to prevent the reverse flow of polluted water from entering into the potable water system.
系列709双止回阀总成适用于防止受到污染的水回流进入到饮用水系统中。
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21. Editor this section features Check is air flows in one direction and not only reverseflow direction control valves.
编辑本段特点单向阀是气流只能一个方向流动而不能反向流动的方向控制阀。
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22. A float collar is placed at the top of the float joint and a float shoe placed at the bottom to prevent reverse flow of cement back into the casing after placement.
浮箍是放置于浮动接头之上的，而浮鞋则是放置于浮动接头之下，以防止水泥浆回流到套管内。
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23. The seat area of the integral body design minimizes pockets where material can accumulate. Illustration above shows direct flow configuration. Reverseflow options are available.
24. RESULTS: the reverse flow were detected at the mitral valve orifice of left atrium, at the opposite of which in left atrium the front flow were also detected.
结果：在观察到二尖瓣口左房侧负向血流的同时，在其左房的相对面可测到前向性血流。
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25. Precision machined tilting disc and seat for tight shutoff in reverse flow direction.
精密机加工的倾斜式阀瓣和阀座，适用于逆流的紧密关闭。
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26. The mathematics model was established based on flow characteristics of reverse flow diverters (RFD) by the using of energy equation.
针对压冲流体在可逆流体换向装置(RFD)中的流动特性，以能量方程为基础建立数学模型。
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27. The mathematics model was established based on flow characteristics of reverse flow diverters (RFD) by the using of energy equation.
