| 1. | Paraffins have high diesel indices .
链烷烃的柴油指数最高。 |
| 2. | The alkanes are generally inert to ionic reagents .
烷烃一般说来对离子型试剂是不活泼的。 |
| 3. | A hydrocarbon was known to be either an alkene or alkane .
某碳氢化合物已知可能是烯烃或是烷烃。 |
| 4. | Alkanes are resistant to attack by oxidizing agents generally .
烷烃一般对于氧化剂的作用是稳定的。 |
| 5. | The first eight straight-chain members are listed in table 2 .
1表21列出的是直链烷烃的前八个成员。 |
| 6. | The straight-chain alkanes exacerbate the problem of engine "knock" .
直链烷烃使机器的“爆震”问题更加严重。 |
| 7. | The gradation in the physical properties of the alkanes is typical of a homologous series .
烷烃物理性质的逐渐变化是同系列的特点。 |
| 8. | For the normal paraffinic hydrocarbons, a number of dilute-gas viscosity have been developed .
对于正构烷烃，已发展了多种稀薄气体粘度。 |
| 9. | After the decarboxylation process the alkane produced can be degraded or "cracked" =to lower carbon number alkanes .
脱羧基作用后，所形成的烷烃能被降解或“裂解”成低碳数烷烃。 |
| 10. | Table 1. 4 compares the boiling points of several alkyl ether that have permanent dipoles with those of hydrocarbons, which have no permanent dipoles .
表14对若干有永久偶极的烷基醚和没有永久偶极的烷烃的沸点作了比较。 |
