Seg L=EN-US>Article 4 Principles of Installation and Use The installation and use of air-conditioning equipment shall help maintain the city appearance, ensure smooth traffic, and avoid disturbing the normal work and life of others.是什么意思_Seg L=EN-US>Article 4 Principles of Installation and Use The installation and use of air-conditioning equipment shall help maintain the city appearance, ensure smooth traffic, and avoid disturbing the normal work and life of others.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句