| 1. | Charts are a map adapted specially for navigation .
航图是专门用于导航的一种地图。 |
| 2. | It is called celestial navigation .
它叫做天文导航。 |
| 3. | He may need to be able to use the stars to navigate his ship .
他也许需要利用星星来给船只导航。 |
| 4. | We look forward to finding further answers to the mystery of animal navigation .
我们期望进一步解开动物导航之迷。 |
| 5. | The aircraft engines, autopilot, and navigation system are absolutely reliable .
飞机发动机，自动驾驶仪和导航系统绝对可靠。 |
| 6. | For some time the german bombers had navigated largely by radio beacons .
有一个时期，德国轰炸机主要是靠无线电定向信标来导航的。 |
| 7. | Should the gyroscopes break down, the celestial system would take over .
如果陀螺仪发生故障，天体导航系统就会接替它继续进行工作。 |
| 8. | Scientists actually know little about how animals perform their navigational feats .
科学家们对动物的这种导航绝技却是孤陋寡闻的。 |
| 9. | Gyroscopes are used in navigational instruments for ships, aircraft, and spacecraft .
陀螺仪用于船舶、飞机和宇宙飞船中的导航设备。 |
| 10. | The principle of equivalence is of critical importance in our analysis of inertial navigation .
等效原理在惯性导航分析中特别重要。 |
