It's a pretty amazing sight when everything is covered in a delicate layer of frost.
精致的白霜层层包裹着一切，真是神奇而美丽的景象啊。
It's a pretty amazing sight when everything is covered in a delicate layer of frost.
可以看一层精致的白霜包裹着世界万物，很棒。
Establishes a mathematic model, taking into account the variation of frost density and the decrease of airflow rate caused by frost layer.
针对平肋肋片管式换热器的结霜过程，建立了数学模型，考虑了霜层密度变化和霜层阻力引起空气流量减小等因素。
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