二级离散复镜像方法将谱域格林函数分两步近似，减少了广义函数束方法对格林函数进行指数拟合的时间。
In the two-level DCIM, the approximation is performed at two levels to reduce the time to fit the Green's functions with exponential functions so that the efficiency is improved.
对上海市二级综合性公立医院的绩效状况进行了模拟评估，并对各绩效指标的影响指数进行了分析。
A simulated performance assessment of the public secondary-level general hospitals in Shanghai was conducted and the influencing index of the indicators was analyzed.
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