| 1. | The prefixes cis and trans are frequently applied to disubstituted cycloalkanes .
词头顺和反常用于双取代的环烷烃。 |
| 2. | One of the hydrogen atoms of the active methylene group is replaced with a cyclooxy group .
活性亚甲基上的一个氢原子是被环氧基所取代的。 |
| 3. | Permanent grass has a number of advantages over clean cultivation, the system it superseded .
多年生牧草较之已被其取代的清耕有许多优越性。 |
| 4. | Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts .
大多数连于芳核能被直接取代的基团仅限于重氮盐。 |
| 5. | This has been confirmed by fuson and josien in studies on substituted benzanthracenes .
Fuson和Josien在取代的苯并蒽类化合物的研究中验证了这一点。 |
| 6. | These amine substituted acid may polymenze in an analogous manner to unsubstituted oxo-anions .
这些胺取代酸可以与未取代的氧络阴离子相类似方式聚合。 |
| 7. | The lack of any methoxysubstituted benzenes would preclude any insertion process taking place .
例中没有甲氧基取代的笨，就应当排除任何嵌入反应的发生。 |
| 8. | The arsenite reactions can be variously accelerated by the addition of aliphatic acids and hydroxy-substituted aliphatic acids .
加入脂肪酸和羟基取代的脂肪酸，可不同程度地加速亚砷酸盐的反应。 |
| 9. | They don ' t know about the past of the people they ' ve replaced
它们不知道所取代的人的过去 |
| 10. | Cast notation and introduction of safe cast
取代的方式。 |
