此外，由于气体的分子运动依赖于温度，在木星行星的低温下，即使是最轻的气体也不可能获得逃逸所需的速度。
Also, because the molecular motion of a gas depends on temperature, at the low temperatures of the Jovian planets even the lightest gases are unlikely to acquire the speed needed to escape.
这些行星上的温度足够高，足以让液态水存在。
It would have been warm enough on these planets for liquid water to exist.
一颗行星保持大气的能力取决于它的温度和质量。
A planet's ability to retain an atmosphere depends on its temperature and mass.
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