And the old-fashioned type system, there is no filtrator, so you need Bison company on air heating or cooling back, resulting in a waste of energy costs.是什么意思_And the old-fashioned type system, there is no filtrator, so you need Bison company on air heating or cooling back, resulting in a waste of energy costs.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句