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用于集材的小四轮拖拉机收稿日期：１９９７－０４－１４（０２１００８）内蒙古呼盟林研所张克然（０２２１７６）内蒙古免渡河林业局丁玉华王军堂集材作业是林业生产的重要工序。近年来，随着可采资源的锐减，集材作业条件恶劣，我盟次生林区很大一部分集材生产又回到了...
Small four-wheel tractor for skidding Received: 1997-04-14 (021008) Inner Mongolia Humen Affiliated Institute Zhang Keran (022176) Inner Mongolia Jiudu River Forestry Bureau Ding Yuhua Wang Jun Tang Skidding operations is an important process of forestry production. In recent years, with the sharp reduction of recoverable resources and the poor operating conditions of the timber industry, a large part of our secondary forest production has returned to the ...