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2013-05-23 12:21
求翻译:摘要: This study analyzes the cost of harvesting pulpwood from natural forests intended for the expansion of forest product opportunities in Michigan. Four sources of information were used to assess costs: (1) the USDA Forest Service Forest Inventory and Analysis database; (2) a Michigan-specific version of the USDA Fore是什么意思?![]() ![]() 摘要: This study analyzes the cost of harvesting pulpwood from natural forests intended for the expansion of forest product opportunities in Michigan. Four sources of information were used to assess costs: (1) the USDA Forest Service Forest Inventory and Analysis database; (2) a Michigan-specific version of the USDA Fore
问题补充: |
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