| 1. | The negative pressure loop should be noted .
应该注意到负压的腹点。 |
| 2. | The exponent is a fraction or negative number .
指数是一个分数或负数。 |
| 3. | Electrical positives attract electrical negatives .
正电荷吸引负电荷。 |
| 4. | Do a blow-up of this corner of the negative .
把底片的这一角放大。 |
| 5. | Congress has assumed some negative functions .
国会发挥了一些消极作用。 |
| 6. | The hydroxyl ion has a negative charge .
氢氧根离子有一个负电荷。 |
| 7. | Two negatives make an affirmative .
两个否定等于肯定，负负得正。 |
| 8. | He introduced a notation for negative numbers .
他为负数引进了一个符号。 |
| 9. | A pool of mercury surrounds the negative electrode .
阴极周围是一池水银。 |
| 10. | Mr. swiveller answered in the negative .
斯威夫勒先生答称没有。 |
