With the new technology of preparation of 2,6-dichlorophenol by direct chlorination from phenol, the production cost was reduced by a big margin.是什么意思_With the new technology of preparation of 2,6-dichlorophenol by direct chlorination from phenol, the production cost was reduced by a big margin.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句