Use precomputed rank data stored in the full - text catalogs 的freetexttable查询使用存储在全文目录中的预计算排名数据。
2.
According to the data obtained from the life cycle inventory analysis , impact to the environment of product can be obtained through ranking data such as consumption of material and energy and waste emission with qualitative and quantitative methods 生命周期影响评价根据清单分析所提供的物质、能源消耗数据及各种排放数据，对系统或产品的环境影响进行评价，即对清单分析结果进行定性或定量排序的过程。
