查询词典 impeller

This paper studies numerically the influence of the tip clearance on the three-dimensional viscous flowfield and performance of the NASA Low-Speed Centrifugal Compressor impeller with a vaneless diffuser. A three-dimensional viscous code developed by the authors is applied with several acceleration methods: local time-step, multigrid and residual smoothing.

通过求解N-S方程，数值研究了叶顶间隙对NASA低速大尺度离心压缩机三维粘性流场及气动性能的影响，在计算程序中采用了当地时间步长、多重网格以及隐式参差光顺来进行加速。

However, the effect from impeller did not keep to the outlet of the vaneless diffuser. Through analyzing the periodic mean field, an unsteady effect region was found within the region whose biggest radius ratio was less than 1. 2 in the vaneless diffuser. The unsteady flow at three flow rate conditions had the similar unsteady characteristic.

无叶扩压器内近前盘r-6面上锁相平均流场的分析表明，当叶轮处于不同周向位置时，无叶扩压器内的流动表现出非定常流动特性，尤其是在人口区域非定常流动特性更为明显。

Soft branch yellow cicada is oleander division constant green half erect bush, xie Chang is elliptic, long 8-11 centimeter, wide 2-4.5 centimeter, opposite or 3-5 impeller are unripe, bud evil on Xie Duo is verticillate, xie Quanyuan, spend yellow, canister shape 5 crack, interior has amaranth streak, racemose move is born in the coping of new tip, florescence 6 one in October.

软枝黄蝉为夹竹桃科常绿半竖立灌木，叶长椭圆形，长8-11厘米，宽2-4.5厘米，对生或3-5叶轮生，萌孽条上叶多为轮生，叶全缘，花黄色，筒状五裂，内部有紫红色条纹，总状花序着生在新梢的顶部，花期6一10月。

The direct reverse circulaeion tor dyeing is executed by change ralve inside the pump .The impeller inside the pump can provide large flow and enough head coelicient for yarm dyeing procredure.Due to its strong penetrbility,it is suitable for very difficrlt texture and various kinds of textures.The dyed textrue is with high color fastness and good uniform dyeing effects.

其染液正反循环通过泵内的换向阀自动完成，泵内叶轮能为染纱过程提供大流量和足够扬程系数，其穿透性强，适染高难织物，被染织物色牢度高，具有很好的匀染效果，适染多种织物。

Through the impeller's spinning, produce water leap, form water film and spray, have a big air-contact surface and bigger aerating action.

通过叶轮的旋转，产生水跃，形成水膜及水花，与空气接触面大，有较大的曝气作用。

The tracked shot-blast machine is with simple operation. Put the work-pieces into tracked rubber roller and close the shot-blast chamber door. Then setup shot-blast time and push the RUN button. Now, the shot-blast cleaning is beginning. The track circumrotates in the forward direction. The work-pieces can be equably and completely cleaned with equal emission of high-speed shots from the impeller of shot-blaster.

履带抛丸机操作简单，将工件放入橡胶履带滚筒中，关闭抛丸室门，设定抛丸时间，操作人员按下&运行&按钮，抛丸清理开始，履带正向旋转，使工件持续收到抛丸器叶轮中高速抛出的弹丸均匀抛射，工件可完全、均匀地得到清理。

By analyzing the passing mode of sundries in the slurry pumps with the dual "S" impeller, it was found that the long fibre effuses along the rear of blade, and passes easily in the "S" blade by long and short blade.

分析了双&S&形叶轮浆料泵中悬浮杂物的通过机理，认为长纤维进入叶轮后将沿着&S&形叶片背面流出叶轮，得出由长短叶片通过过渡圆弧连接而成的&S&形叶片有利于长纤维物料通过的结论。

The centrifugal superchargers use the same type of compressor impeller as a turbocharger and the faster they spin the more boost they make and it is not linier.

离心 增压器使用与A相同的压缩机叶轮的类型他们纺他们做的更多的帮助的turbocharger和更迅速的和它不细弱。

Steady flow rig test shows that if the injector injects air at suitable position and direction, the AIVSIS is able to make the swirl measuring impeller strongly rotate clockwise and counter clockwise under the condition that the vacuum pump is turn off.

稳流气道试验表明，当空气喷嘴在柴油机螺旋进气道内以特定的方向喷射空气时，可以使模拟气缸内测量涡流的叶轮正向或者反向旋转。

Axial-flow impeller in the direction of liquid flow in parallel with the axis.

轴流式叶轮液体流动的方向与轴线平行的。

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。