| 1. | Many of the deposits are too small, too impure .
许多蕴藏量太小，质地太不纯。 |
| 2. | These are deliberately made impure by the admixture of a small amount of a different element .
通常采取加入少量其它元素的方法以有意使它不纯。 |
| 3. | Their language was a bastard arabic, and yet they were not arabs; i was quite sure of that .
他们说着不纯的阿拉伯语，我敢肯定他们不是阿拉伯人。 |
| 4. | The impurity of supposedly pure subcellular fractions is a constant threat to the plant biochemist .
以为亚细胞组分很纯而实际不纯的情况，一直是植物化学家感到难办的问题。 |
| 5. | 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。 |
| 6. | His heart cannot be pure whose tougue is not clear . - - -
嘴不净者，心不纯。 |
| 7. | The iron ore which we find in the earth is not pure
我们在地球上发现的铁矿是不纯的。 |
| 8. | The impure mixture with impurity is purified
含杂质的不纯混合物被提纯。 |
| 9. | There is no impurity so impure as old age
都没有年龄大了那种不纯的杂质 |
| 10. | Undetectable , minimal impurity content
最低极限之不纯物含量 |
