conservationn.保存;保护;守恒;节约
conservation of earthen ruin土遗址保护
conservation of flow on link路段流量守恒
Conservation countermeasures保育对策
conservation and development保护与发展
Conservation of ancient town古镇保护
conservation of rare animals珍贵稀有动物的保护
conservation of water nature水资源保持
conservation-minded society节约型社会