| 1. | Precipitation might spoil things .
轻举妄动会把事情弄得不可收拾。 |
| 2. | Abundant precipitation is more important than extreme cold .
丰富的降雪量比酷寒更为重要。 |
| 3. | Clouds are sometimes seeded with silver iodide to induce precipitation .
人们有时在云里播撒碘化银，以诱使降雨。 |
| 4. | The quantity of precipitation varies greatly from year to year in these regions .
在这些地区每年降雨量的变化很大。 |
| 5. | Heavy vegetation may intercept a large amount of precipitation on its leaves .
浓密的植被的叶子中能截留大量的降水。 |
| 6. | The incubation time for incipient precipitation is often a minute or more .
出现沉淀的孕育时间常常需要一分钟或更多的时间。 |
| 7. | There is generally more evaporation over the oceans and more precipitation over the land .
通常在海洋蒸发量较大，而陆地上则降水量较大。 |
| 8. | The actual practice of electrical precipitation involves a surprising number of scientific disciplines .
在实践中，电收尘涉及到许多科学领域。 |
| 9. | Such crystals are thus efficient condensation nuclei and so promote precipitation from a cloud .
这种晶体是有效的凝聚核，从而促使云变雨降落。 |
| 10. | Nearly all the precipitation that falls on the earth results from the cooling of rising air .
几乎落到地球上的所有降水都是由于上升空气的冷却。 |
