短語詞組短語conservation of resource theory 資源保存理論;的資源保存理論construction and conservation theory 保護(hù)與更新conservation of resources theory 資源守恒理論;理論momentum conservation theory 動(dòng)量守恒定律energy conservation theory 理論Conservation of rescource theory 資源保存理論Energy Conservation Theory and Technology 節(jié)能理論與技術(shù)Biodiversity Theory and Conservation 生物多樣性理論與保護(hù) 返回 conservation theory