常見例句Some signiticant results are obstained.At the same time,a new path which produces the gowd Barium Carbonate and satisfies the demand of relevant industy is found out. 為生產優(yōu)質碳酸鋇產品，滿足工業(yè)使用部門的需求探索出了一條新的途徑。 返回 gowd