At temperatures around minus 230 degrees Fahrenheit, dust blowing up from below or falling into the atmosphere from space provides a resting spot for water vapor to condense and freeze.
在大约零下230华氏度的气温下,由下而上吹起或从太空落下的灰尘为水汽提供了凝缩冻结的停留地点。
That corresponds to roughly 1.5 litres of heating oil a year - or 345 litres of oil for the 230 square meters of living space.
如果使用燃油取暖的话,则每平方米,每年大约用掉1.5公升燃油——即,230平方米的生活空间,使用燃油345升。
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