A limitation of green power generation is that wind farms and large-scale solar panels are easier to site in remote areas, leaving a challenge in taking energy to centres of population.
绿色发电的制约是风力发电场和大规模的太阳能电池板更方便设置于偏远地区，而将能源传输到人口密集地区比较困难。
The calculation formulas of sample size based on the error limitation are given for estimation of population mean.
对于样本均值估计总体均值，给出了基于误差限制的样本容量的计算式。
Due to the limitation of objective and subjective elements, this research takes a static environment as the basis rather than the mobile population.
受主客观因素的限制，本研究以静态研究环境为基础，尚未将城市流动人口的动态影响考虑在内。
Due to the limitation of objective and subjective elements, this research takes a static environment as the basis rather than the mobile population.
受主客观因素的限制，本研究以静态研究环境为基础，尚未将城市流动人口的动态影响考虑在内。
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