Objective : To study the content variation of triptolide in medicinal material of Tripterygium and provide theoretical basis for the hereditary improvement, the gathering and process, the quality evaluation and the provenance division in medicinal materi - al of Tripterygium. 目的:研究雷公藤药材中雷公藤甲素质量分数的变异规律,为雷公藤药材人工栽培遗传改良、采收加工、质量评价、产区区划提供理论依据。
Firstly, this paper described and analyzed the power quality indicators and accordingly established a comprehensive evaluation index system of power quality, made a scientific division on each indicator according to the latest issued Power quality national standards. 本文首先对各项电能质量指标的进行阐述和分析,并据此建立了电能质量综合评估指标体系,依据最新颁布的电能质量国家标准对各指标等级进行了科学的划分。
Taking the central business district ( CBD ) of Beijing as an application case, the underground space resource quality was evaluated based on the model of fuzzy synthesis evaluation and the method of cell cube division, and a group of three-dimensional visualization evaluation results were obtained. 并以北京CBD为例,采用模糊评估模型和基本单元体划分方法,在GeoMo3D系统中进行了地下空间资源质量评估,得到了3D可视化评估结果。