短語詞組短語Age -structure 年齡結(jié)構(gòu)age class structure 齡級結(jié)構(gòu);年齡級結(jié)構(gòu)class age -structure 類年齡結(jié)構(gòu)flat manthe age ofment structure 扁平化和管理結(jié)構(gòu)age -structure fish population systems 年齡結(jié)構(gòu)魚群系統(tǒng)Adjusting The Age Structure 調(diào)整從結(jié)構(gòu)economic age structure 經(jīng)濟年齡結(jié)構(gòu)age structure of bamboo 竹齡結(jié)構(gòu)steady age structure 穩(wěn)定年齡結(jié)構(gòu) 返回 age structure