| 1. | The overall reaction is one of substitutions .
总反应是取代反应中的一种。 |
| 2. | They allow no substitutions on the club luncheon .
客饭固定的午餐不能换菜。 |
| 3. | I have made the substitutions required in this book .
我在本书中已应需要作了改换。 |
| 4. | The procedure for solving the eqs is called back substitution .
解方程组的这一步骤叫回代。 |
| 5. | Substitution : player no. 4 for no. 3 .
换人： |
| 6. | For the moment, she could scarcely forgive the substitution .
这会儿，她没法子宽恕这种更替。 |
| 7. | Amines can engage in nucleophile substitution reaction with alky .
胺能参加与卤代烷的亲核取代反应。 |
| 8. | Substitution , no.3 for no.4 .
换人： |
| 9. | Bridged bicyclooctanes gave no significant bridgehead substitution .
桥二环辛烷不给出有意义的桥头取代。 |
| 10. | It was merely the substitution of one piece of nonsense for another .
这不过是用一个谎话来代替另一个谎话。 |
