Some impurities are entirely substitutional or interstitial in behavior, but others can exist in either lattice position . 有些杂质是单纯的替代位或单纯的间隙位杂质，但也有的可以在任一晶格位置存在。
Recently, it has been shown that such substances, either by themselves or by virtue of their impurities or reaction products, are teratogens . 最近已经证明，这类物质，或是它们本身，或是它们的不纯物或反应产物，都是致畸形物。
This variation hampered the study of the "intrinsic" properties as one could never be quite sure that an observed effect was not due to impurities . 这种变化妨碍了“本征”性质的研究，因为总不能十分确信所观察到的效应不是由杂质引起的。
These use carbon or mesh to catch impurities 他们使用碳或滤网来过滤不洁的东西。
These use carbon or mesh to catch impurities 这些装置使用碳或网状物来过滤杂质。
Filtering the water removed some of its impurities 过滤可以除去水中的一些杂质。
Refined sugar has had all the impurities removed 精制糖已经清除所有的杂质了。
Filtering the water removed some of its impurities 把水过滤一下除去了一些杂质。
Gandrake : we will purge the world of its impurity 我们会净化世界的一切废物！
Determination of impurities in imidacloprid by hplc - msd 法鉴定吡虫啉中的微量杂质
