| 1. | Zinc displaces the hydrogen of dilute acids .
锌置换了稀酸中的氢。 |
| 2. | The displacer is still in its highest position .
置换器仍处于其最高位。 |
| 3. | It is not necessary to replace air with inert gas .
不必用惰性气体置换空气。 |
| 4. | These include character displacement, habitat selection .
这些包括特征置换、栖息地的选择。 |
| 5. | Such immersion or displacement deposits are usually spongy and black .
这种浸镀或置换是海棉状和黑色的。 |
| 6. | An increase in cation exchange capacity of the tissue should be observed .
可以观察到植物组织中阳离子置换能力的提高。 |
| 7. | For slow replacement the age distribution function assumed is unimportant .
对缓慢置换，假设的时龄分布函数变得不重要。 |
| 8. | Other enumeration problems lead us to the study of orbits of permutation groups .
其它的计数问题引导我们去研究置换群的轨道。 |
| 9. | The elasticity of substitution is a useful concept in several areas of economics .
置换弹性在若干经济学领域内是一个有用的概念。 |
| 10. | Multiplication of permutations, unlike multiplication of numbers, is not always commutative .
置换的乘法不同于数的乘法，它并不一定满足交换律。 |
