Extraction toxicity is an important identification indicator of hazardous waste toxicity characteristics.
浸出毒性是危险废物毒性特性鉴别的重要指标。
By using orthogonal test, the extraction rate of total flavonoids of Litchi was applied as the observatory indicator to investigate the extraction process.
采用正交试验，以荔枝核总黄酮的提取率为考察指标，优化提取工艺。
Methods: the extraction technique was evaluated by single factor experiment and orthogonal design, with the extraction rate of the asiaticoside as indicator.
方法：以积雪草苷提取率为评价指标，采用单因素实验与正交实验设计优选出积雪草中积雪草总苷的提取条件。
Based on the established indicator data system, building table and field mapping between the indicator cadastral database and the county level databases for cadastral data extraction.
在地籍数据指标体系确立的基础上，建立指标数据库和试点县级地籍数据库之间的表和字段映射，进行地籍数据提取。
The optimum extraction time and ratio of sample weight to extractant volume were chosen according to the extraction results of indicator parameters and heavy metals in leachates.
分别根据表征参量和重金属在萃取溶液中的含量变化确定最优萃取时间和萃取样液比。
The optimum extraction time and ratio of sample weight to extractant volume were chosen according to the extraction results of indicator parameters and heavy metals in leachates.
分别根据表征参量和重金属在萃取溶液中的含量变化确定最优萃取时间和萃取样液比。
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