The little child drools whenever he hears of something delicious.小家伙一听到有好吃的,口涎就流出来好长!One's mouth drools with greed when seeing the round and smooth red pomegranates on the tree.看着树上溜圆的红石榴,真叫人馋涎欲滴....
目前主要用联合制碱法生产碳酸钙纯碱.At present mainly uses the union system alkaline process production calcium carbonate soda ash.它的工业制法主要有氨碱法和联合制碱法两种.Its industry facture mainly has the ammonia soda law and the system alkaline process t...