dewpoint
noun [ C ] uk/ˈdʒuː.pɔɪnt/ us/ˈduː.pɔɪnt/
露点，露点温度（空气中所含的气态水达到饱和而凝结成液态水所需要降至的温度）
the temperature at which air can no longer hold all the water in it, and the water starts to form drops on surfaces
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