The necessary data for analysis often runs out, which cannot provide reliable parametric variation;

主要包括分析需要的数据经常缺乏，无法提供可靠的参数变化；

youdao

The necessary data for analysis often runs out, which cannot provide reliable parametric variation;

主要包括分析需要的数据经常缺乏，无法提供可靠的参数变化；

youdao