But it can not be used at some condition because it will be decomposed and becomes Al_2O_3 and TiO_2 , and it has low strength.是什么意思_But it can not be used at some condition because it will be decomposed and becomes Al_2O_3 and TiO_2 , and it has low strength.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句