No free lunch for the bugs, No free lunch for us either Let us serve the bugs before bugs serve us better. 第十 废水生物处理的基本概念 和生化反应动力学基础1 No free lunch for the bugs, No free lunch for us either. Let us serve the bugs before bugs serve us better. 第十一章 废水生物处理的基本概念 和生化反应动力学基础