Layered materials can be divided into two classes: the first maintains the layered framework by Van der Waals force; and the second by the coulombs.是什么意思_Layered materials can be divided into two classes: the first maintains the layered framework by Van der Waals force; and the second by the coulombs.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句