| 1. | They are regarded as electrons moving backward in time .
认为它们就是逆着时间而运动的负电子。 |
| 2. | Therefore the whole atom is neither positive nor negative .
因此，整个原子，既不带正电，也不带负电。 |
| 3. | Outward currents therefore increase electronegativity in the cell interior .
外向电流因此能增加细胞内的负电性。 |
| 4. | Experience shows that the positive electrode always burns away more rapidly than the negative .
经验表明，正电极比负电极烧蚀得快得多。 |
| 5. | Hyperpolarization and repolarization both describe increased electronegativity within the cell .
超极化及再极化都表明细胞内负电性的增强。 |
| 6. | The drops are usually negatively charged, but occasionally one with a positive charge is found .
这些油滴一般都带负电，但偶尔也发现有带正电的。 |
| 7. | Thus, glass becomes positive, while the silk with which the glass was rubbed becomes negative .
例如，玻璃与丝绸摩擦时，玻璃带正电，而丝绸带负电。 |
| 8. | In effect, a negative resistance is inserted in the circuit so that its total resistance is zero .
实际上，这就是把负电阻接入电路，使电路的总电阻为零。 |
| 9. | An object is positively charged if it has a shortage of electrons, it is negative if it has a surplus of electrons .
一个物体如果缺少电子就带正电荷；如果电子过多就带负电。 |
| 10. | Tending to attract electrons to form a chemical bond
负电极的有吸引电子以形成化学键的倾向的 |
