recovery strategy短语⁶⁷²⁹⁹ 基本例句 重生策略 The disadvantages of the conventional sewage discharge and disposal way are analyzed and the ecological sanitation concept using source control and resource recovery strategy is introduced. 在分析传统的城市排水和污水处理模式的缺陷的基础上本文介绍生活污水源头分类控制和资源化的生态排水理念。 mcs.szu.edu.cn