You can't work with an average, squashing together the way heat radiation goes through the dense, warm, humid lower atmosphere with the way it goes through the thin, cold, dry upper atmosphere.

通过平均法计算是行不通的，即不能将热力在密实、温暖、潮湿的底层大气层中辐射的方式，与在稀薄、寒冷、干燥的上层大气层中的辐射方式混为一谈。

youdao

Back in my room, I wrapped all my blankets around me to keep warm thinking wistfully of the dense, heavy comforters found in Danish country hotels and sat down at my desk to start work on the twenty pages Gadbois had given me to translate.

NEWYORKER: Sweetheart Sorrow