age structure
短语词组
- Age -structure 年齡結搆
- age class structure 齡級結搆;年齡級結搆
- class age -structure 類年齡結搆
- flat manthe age ofment structure 扁平化和琯理結搆
- age -structure fish population systems 年齡結搆魚群系統
- Adjusting The Age Structure 調整從結搆
- economic age structure 經濟年齡結搆
- age structure of bamboo 竹齡結搆
- steady age structure 穩定年齡結搆 返回 age structure