| 1. | Influence on uv intensity at the earth s surface 对到达地面紫外线强度的影响 |
| 2. | About three - fourths of the earth s surface is covered with water 地球表面有四分之三由水覆盖。 |
| 3. | B reflection by the earth s surface 二地球表面的反射作用。 |
| 4. | Amount reaching the earth s surface 到达地面的辐射量 |
| 5. | Uvc is absorbed by the atmosphere and never reaches the earth s surface 远紫外光会被大气层吸收,所以不会落到地面。 |
| 6. | Gis systems acquire and process spatial data describing the earth s surface Gis系统可获得并处理描述地球表面的空间数据。 |
| 7. | At the earth s surface 在地球的表面 |
| 8. | There is as little air inside the synchrotron as found 500 miles above the earth s surface 英里高的太空一样,同步加速器内部几乎没有什么空气。 |
| 9. | Snowflakes form when air temperature near the earth s surface is not far from the freezing point 不过,要长出巨大的雪花是需要完美的条件配合的 |
| 10. | Near the earth s surface , however , friction tends to cause the air to move slightly inward across the isobars 接近地球表面,摩擦力使空气稍微向内越过等压线。 |