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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。
- The branch sprang back and hit me in the face. 树枝弹回来打在我脸上。
- Rose bushes shoot again after being cut back. 玫瑰丛修剪後还能再长出新枝。
- She can keep calmed and step back. 她能够保持冷静后退一步来思考问题
- Ann's face and back are covered with freckles. 安的脸上和背上长满了雀斑。
- The branch whipped back and hit me in the face. 那树枝突然弹回打在我的脸上。
- Color was coming back to his face. 他脸上的血色在好转。
- Let's step back and ask whether it is worth all the trouble. 让我们后退一步问问这些麻烦是不是划得来。
- He came back with a face as long as a fiddle. 他板著脸回来了。
- Say it to his face, not behind his back. 话要当面说,不要背后说。
- The schoolboy made a face at his teacher's back. 那个男生对着教师的背后做个鬼脸。
- He trudge three hour in the snow to get back home. 他在雪中跋涉三个钟点才回到家。
- The crowd fell back to let the players through. 人群后退让运动员们通过。
- Do exercise every day and you'll be back in condition. 每天锻炼锻炼,你很快会恢复健康的。
- The ship beat back against a monsoon. 船逆着季风艰难地行驶。
- 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
- I flap the flies away but soon they fly back. 我把苍蝇赶走,但一会儿又飞回来了。
- I never lend books; you never get them back. 我的书决不外借,因为总是有去无回。
- She leaned her head back and whispered the news. 她向后仰着头,小声说出了这个消息。