| 1. | One of the necessary conditions of preservation is quick burial .
保存的必要条件之一是速埋。 |
| 2. | One of the necessary conditions of preservation is quick burial .
保存的一个必要条件是迅速掩埋。 |
| 3. | Tow factors are favorable for the preservation of organisms as fossils .
有两个因素对生物化石的保存是有利的。 |
| 4. | A suitable relative humidity is important for the preservation of furniture .
适当的相对温度对保护家具是十分重要的。 |
| 5. | Then began this business of deliberate food-growing and of food preservation .
然后开始这种有意识地种植粮食和储存食物的活动。 |
| 6. | Tests for blindness include a test for the eye preservation reflex and an obstacle test .
盲视试验包括眼的保护性反射和障碍试验。 |
| 7. | Both sides claim they are fighting for the preservation of traditional american values .
双方都声称，他们是为维护美国的传统价值准则而战。 |
| 8. | In this age of thermonuclear technology, neither view can assure man's preservation .
在当今的热核技术时代，这两种观点都不足以保障人类的生存。 |
| 9. | New economic preservation techniques would enhance the marketing of processed agricultural products .
新的，经济的贮藏技术将能延长农产品上市的时间。 |
