| 1. | On april 5 the doldrums eased .
到四月五日，赤道无风带状态逐渐缓和。 |
| 2. | Many rivers carry silt toward the equator .
许多河流带着泥沙流向赤道。 |
| 3. | We flew south through the equatorial night .
我们穿过赤道的夜空向南飞行。 |
| 4. | The united states is north of the equator .
美国位于赤道以北。 |
| 5. | The african continent spans the equator .
非洲大陆横跨赤道。 |
| 6. | It forms a right angle with the equator .
它与赤道成直角。 |
| 7. | The equatorial portion should tend to swing outward .
近赤道的部分会有向外凸出的趋势。 |
| 8. | An equatorial mounting of the camera has a great advantage .
将照相机赤道式安装很有利。 |
| 9. | A trigonal bipyramid has three equatorial and two axial positions .
一个三角双锥体有三个赤道位和两个轴向位。 |
| 10. | The equator is a great circle midway between the north and south poles .
赤道圈是一个位于南北极当中的大圆周。 |
