3. This results provides us a simple and effective way to assay the quality of drinking water. 该结果为鉴定饮用水的质量提供了一种简单而有效的方法。
1. an appraisal of the state of affairs
2. a substance that is undergoing an analysis of its components
3. a written report of the results of an analysis of the composition of some substance
4. a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its com v.
1. analyze (chemical substances)
2. make an effort or attempt