假定网架结构制作偏差近似服从正态随机分布，利用舍选法实现了正态随机变量的抽样。
The manufacturing deviation of grids structures was assumed to be in normal distribution, and the normal random sampling was realized by acceptance-rejection method.
多米尼西说准实验法是近似一个随机实验的很好方法，“尤其是在这种不可能做随机实验的情况下。”
Dominici said the quasi-experimental approach was a good approximation of a randomized experiment, "especially in this situation where a randomized experiment is not possible. ""
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