Based on the conduction transfer function (CTF) model of a multi-layer wall, the CTF model of an envelope is established based on the first law of thermodynamics.是什么意思_Based on the conduction transfer function (CTF) model of a multi-layer wall, the CTF model of an envelope is established based on the first law of thermodynamics.在线翻译_英语_读音_用法_例句