| 1. | We can draw the earth 's orbit round the sun .
我们可以画出地球绕太阳运行的轨迹。 |
| 2. | The earth is one of the planets revolving round the sun .
地球是绕太阳运行的行星之一。 |
| 3. | The thermostat provides heating-cooling for year-round use .
这个温度控制器可适用全年运行的采暖降温控制。 |
| 4. | As the vehicle speed increases, transition to 120v operation occurs .
当车速提高时，就转换到120V运行的状态。 |
| 5. | The thermostat provides heating-cooling control for year-round use .
这个温度控制器可适用于全年运行的采暖-降温控制。 |
| 6. | The moon doesn't describe a circle round the earth, but rather an ellipse .
月球绕地球运行的轨道不是浑圆的，而是椭圆的。 |
| 7. | Economy of operation normally requires that this water be used again and again .
为了运行的经济性，通常要求水要反复地使用。 |
| 8. | As a result, the peak power for operation is limited to 86% for continuous operation .
结果，对于持续运行的最大功率限制于86。 |
| 9. | This backward push would make the ship lose orbit energy and begin to spiral downward .
这种向后推动力量会使太空船丧失环绕运行的能力，开始向下旋转。 |
| 10. | Satellites orbiting round the earth have provided scientists with a vast amount of information about conditions in outer space .
环绕地球运行的人造卫星，为科学家提供了有关外层空间的大量资料。 |
