| 1. | He finally stroke out a new method for testing the purity of the water .
他终于想出测定水纯度的新方法。 |
| 2. | The intensity of the colour is a measure of the purity of the product .
颜色的强度是产品纯度的一种量度。 |
| 3. | Oxygen obtained from liquefied air is usually about 99.5% pure .
由液化空气所取得的氧其纯度通常约为99.5%。 |
| 4. | A beneficiation process is used to increase the purity to 95% or more .
可采用富集方法将纯度提高到95或更高。 |
| 5. | Synthetic vitamins have established an enviable record in purity of product .
合成维生素在产品纯度方面已证实具有出色的记录。 |
| 6. | Superpure dna can be prepared using rna transcribed from dna in the course of gene expression .
在基因表达期间，使用从DNA转录而来的RNA可制备出超纯度的DNA |
| 7. | Saturation is that property of a color which indicates the purity or amount of white contained in the color .
颜色的色浓度是指色调的纯度或颜色中所含的白色的数量。 |
| 8. | The catalyst vendors came out with a catalyst incorporating a low surface area, high purity alumina carrier .
催化剂出售商供应了一种具有表面积小，纯度高的氧化铝载体催化剂。 |
| 9. | Nowadays, however, almost all petroleum products have to be specially tailored, in terms of properties and freedom from impurities .
不过，现在必须对几乎全部的石油产品按其性能及纯度进行分类。 |
| 10. | At the same time, drug agents are finding that the cocaine they seize is two or three times purer than that seized last year .
同时，查毒人员发现，他们查获的可卡因比去年查获的纯度要高二至三倍。 |
