Chemical bubbling method is adding bubbling agent into rawmaterial, making the agent reacting with the materials to produce gas and therefore forming small bubble in the brick.是什么意思_Chemical bubbling method is adding bubbling agent into rawmaterial, making the agent reacting with the materials to produce gas and therefore forming small bubble in the brick.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句