They therefore seem to favour warm areas and times, suggesting that they consist of volatile material.
看起来它们在温暖的区域和时节更为明显，这表明其可能是挥发性物质。
At the same time, the original mixture will contain more of the less volatile material.
同时，初始混合物中含有较多不易挥发组分。
Comets are rich in volatile material. It suggests that comets should form and keep for a long time in the low temperature region of the outer solar system.
彗星富含挥发物，这表明它们形成并长期保存于太阳系外部低温区。
Comets are rich in volatile material. It suggests that comets should form and keep for a long time in the low temperature region of the outer solar system.
彗星富含挥发物，这表明它们形成并长期保存于太阳系外部低温区。
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