periapsis

periapsis

1. Periapsis in Earth orbit,the point in its orbit where a satellite is nearest to the Earth.

以地球为中心的最近点，人造卫星轨道上离地球中心最近的点。

2. periapsis in Earth orbit;

以地球为中心的最近点；

3. periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth.

以地球为中心的最近点；人造卫星轨道上离地球中心最近的点。

4. periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun

以太阳为中心的最近点；在天体运行轨道上距离太阳最近的点

5. periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun.

以太阳为中心的最近点；在天体运行轨道上距离太阳最近的点。

6. periapsis in orbit around the moon.

以月球为中心的轨道的最近点。

7. periapsis in orbit around Jupiter.

以木星为中心的轨道的最近点。

8. According to the principles of orbital dynamics, the most efficient places to apply drag or thrust are the points in the orbit nearest (periapsis) and farthest (apoapsis) from Jupiter.

根据轨道动力学的原则，施加拖曳或推进力最有效率的位置是轨道中最靠近及最远离木星的点（分别为近心点与远心点）。

9. The angular distance of a point in an orbit past the point of periapsis measured in degrees.

穿过用角度来测量的进拱点的一个轨道里的某点的角距离。

10. periapsis distance

近拱距

11. The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重复在远心点施以推力，会将近心点由同步轨道内提升到同步轨道外。

12. As the spacecraft went around and around Jupiter, mission controllers would turn on the tether near periapsis to produce drag (and usable power) and turn it off elsewhere.

随著太空船一遍遍地绕行木星，任务控制者将在近心点附近启动缆索以产生拖曳力（及可用能量），并在其他地方关闭它。

13. As the spacecraft went around and around Jupiter, mission controllers would turn on the tether near periapsis to produce drag( and usable power) and turn it off elsewhere.

随著太空船一遍遍地绕行木星，任务控制者将在近心点附近启动缆索以产生拖曳力（可用能量）并在其他地方关闭它。