The flow field in stirred tank with impeller CBY is simulated, and thecalculated powernumber is consistent with the experimental data.
模拟了CBY 桨叶的流动场，得到的桨叶功率消耗与实验数据基本吻合。
2
With Cuicuilco eliminated as a potential rival, any one of a number of relatively modest towns might have emerged as a leading economic and political power in Central Mexico.
The grand mediocrity of today—everyone being the same in survival and number of offspring—means that natural selection has lost 80% of its power in upper-middle-class India compared to the tribes.