nuǎntōng kōngtiáo

== Mandarin == === Romanization === nuǎntōng kōngtiáo (Zhuyin ㄋㄨㄢˇ ㄊㄨㄥ ㄎㄨㄥ ㄊㄧㄠˊ) Hanyu Pinyin reading of 暖通空調 / 暖通空调