| 1. | All five valences are the ordinary, nonpolar ones .
所有5个价键都是普通的非极性键。 |
| 2. | The alkanes are non-polar .
烷是非极性的。 |
| 3. | Methane is apolar .
甲烷是非极性的。 |
| 4. | The polarity of the ends of the open-circuit conductor may then be deduced .
这样就可以断定开路导体两端的极性。 |
| 5. | A molecule where the centers do not coincide is called a polar molecule .
正负电荷中心不重合的分子称为极性分子。 |
| 6. | The polar concepts of the physical organic chemist are relevant to radical reactions .
物理有机化学家的极性概念能够适用于基反应。 |
| 7. | The nonpolar segments of surfactants include straight-chain and branched alkyl groups .
非极性表面活性剂链段包括直链和支链的烷基。 |
| 8. | It is not possible to try to salvage or change the polarity correctly by charging .
试图补救或通过充电的方法把极性改过来是不可能的。 |
| 9. | The magnitude of the spike and of the reversal varies in different heart tissues .
峰电位和极性倒转的幅度，随不同类型的心肌组织而异。 |
| 10. | Oxidation of soils by bleaches can break down large molecules into smaller segments with polar sites .
关于漂白对污垢的氧化作用，使其大分子裂解为带极性基因的短链段。 |
