牧场防护林
- 网络rangeland wood; Pretective forest in rangland
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牧场防护林
rangeland wood
绪论、第一、二章... ... 农田防护林( shelter wood) 牧场防护林( rangeland wood) 海岸防护林( sea coast forest) ...
Pretective forest in rangland
护牧林,Forest protected pastoral... ... ) Pretective forest in rangland 牧场防护林 ) pasture shelter belts 牧草防护林 ...
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