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- In a Reynolds number range of 150<6500, a particle image velocimetry (PIV) is used to measure and visualize the 2D flow over a backward facing step. 利用粒子图像测速技术(PIV)，对雷诺数150<6500范围二维后向台阶的流动进行详细观测。
- The configurations of transverse injectors with a rearward facing step, gas/liquid coaxial injectors, nozzles with different throat diameters were studied by a series of tests. 采用分段可拆卸的点火器,对带后向台阶的横向喷注器、气液同轴喷注器、不同喉部直径的喷管等结构进行了试验研究。
- Influence of a Ripplet on the Turbulent Flow Behind a Backward Facing Step 肋片对后台阶湍流流动影响的数值模拟
- Investigation of the starting flow over a backward facing step flow via PIV 应用PIV进行二维后向台阶流流动特性的研究(2)二维后向台阶流起动流的研究
- Investigation of vortex structure of the 2D backward facing step flow via PIV 应用PIV进行二维后向台阶流流动特性的研究(1)二维后向台阶流的旋涡结构的研究
- It is a fact of life and you must face it. 这是严酷的现实，你必须面对它。
- He tried to put a bold face on his failure. 他对自己的失败装出一副满不在乎的样子。
- He lined out for home without a backward glance. 他头也不回，急忙往家里走去。
- She rose and took a tentative step backward. 她起身试探着退了一步。
- This part of the country is still backward. 这个国家的这个地区仍很落后。
- In some cities housing conditions went backward. 某些城市的住房条件越来越差。
- The teacher was patient with backward children. 那位老师对迟钝的学童十分耐心。
- He looked backward over his shoulder. 他回头向后看。
- I dry my hands and face with the towel. 我用毛巾擦干了双手和面部。
- The sea have erode the cliff face over the years. 海水经年累月冲刷著峭壁的表面。
- He took a backward step and ran away. 他向后退了一步,跑了。
- He stumbled over a stump and fell flat on his face. 他给树桩一绊，摔了个嘴啃泥。
- How beautiful she performs the backward step! 她的后退步跳得多美！
- Get the stardust out of your eyes and face reality. 抛弃天真的想法而面对现实。
- A dash of water in his face will revive him. 向他脸上泼水能使他苏醒。
