| 1. | The earth's surface itself serves as the reference space .
地球表面即可视为基准空间。 |
| 2. | Approximately 75% of the earth's surface is covered with water .
地球表面大约有75为水所覆盖。 |
| 3. | All the water of the earth's surface is included in the hydrosphere .
地球表面的水都属于水圈的范畴。 |
| 4. | Scientists have learned that the face of the earth is not permanent .
科学家们已经认识到，地球表面并非静止不动。 |
| 5. | The curvature of the earth limits a microwave's line-of-sight path to about 30 miles .
地球表面的弯曲度把微波的直线轨迹限制到30英里左右。 |
| 6. | The surface of the earth is thus immensely important to the overall scheme of energy exchange .
所以，地球表面对整个能量转换全局是非常重要的。 |
| 7. | Adding up all the energy received over the earth's surface gives a staggering total .
把地球表面接收到的能量全部加起来，将得出一个令人惊愕的数字。 |
| 8. | This monstrous flare would undoubtedly incinerate all life on the surface of the earth .
这种难以置信的突然爆发无疑会把地球表面的一切生命烧成灰烬。 |
| 9. | All pressure differences between places on the earth's surface can be traced, directly or indirectly .
地球表面任何地区间的压力差都可以直接或间接地测算出来。 |
