The difference of PC and NC in different economic level group had statistical significance(P<0.001).
不同经济水平组NC、PC的差异都有统计学意义（P<0.001）。
In all three countries, economic stability made a big difference for the better.
三国经验都表明，经济稳定至关重要，越稳定则越利于减贫。
The difference between Europe and America is apparent in economic arrangements as well.
欧洲与美洲在经济格局上的区别也是十分明显的。
The difference of economic status structure has statistical significance.
四县之间的差异有统计学意义。
Accumulation system makes no difference on redistribution and economic growth.
基金制对社会分配和经济增长没有影响。
In this paper the optimum reactive power flow program of economic voltage difference is presented.
文章介绍了所开发的经济压差优化无功潮流程序。
In this paper the optimum reactive power flow program of economic voltage difference is presented.
文章介绍了所开发的经济压差优化无功潮流程序。
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