片语
slope protection forestry坡面防护林
protection forestry detail防护林业
water resource protection forestry水源保护林建设
protection n forestry防护林
forestry protection森林保护
Science of Forestry Protection森林保护学
ecological protection forestry生态防护林
forestry resource protection and recreation丛林资源掩护与游憩
forestry protection policy林业保障政策