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词汇 Escape orbit
分类 英语词汇 英语翻译词典
释义

Escape orbit

原声例句
Crash Course 天文篇

An escape orbit is open — it doesn't come back — and is shaped like a parabola.

逃逸轨道是开放的——它不会回来——形状就像抛物线。

连线杂志

You then need to understand what is the amount of thrust or what is the amount of drag that I have to overcome in order to escape this orbit?

然后你需要知道推力是多少，或者为了逃离这个轨道，我必须克服的阻力是多少？

英语百科

Parabolic trajectory

（重定向自Escape orbit）
The green path in this image is an example of a parabolic trajectory.
A parabolic trajectory is depicted in the bottom-left quadrant of this diagram, where the gravitational potential well of the central mass shows potential energy, and the kinetic energy of the parabolic trajectory is shown in red. The height of the kinetic energy decreases asymptotically toward zero as the speed decreases and distance increases according to Kepler's laws.

In astrodynamics or celestial mechanics a parabolic trajectory is a Kepler orbit with the eccentricity equal to 1. When moving away from the source it is called an escape orbit, otherwise a capture orbit. It is also sometimes referred to as a C3 = 0 orbit (see Characteristic energy).
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