最近廿年来,一些科研和教学单位从事伐木机械化研制工作的效果如何?它们能满足我们的需要吗?显然不能。已成批生产的ЛП—2型伐木打枝机在中乌拉尔林区使用的效果不好。统计的结果同样表明,ВТМ—4型伐木集材机在这些林区的应用也很有限。造成这种状况的原因之一,据我们的看 In the recent 20 years, how effective are some research and teaching units engaged in the development of logging and mechanization? Can they meet our needs? Obviously not. The ЛП-2 type cutting and branching machines that have been batch-produced are not very effective in the use in the Central Urallin. The statistical results also indicate that the ВТМ-4 feller skidder has very limited application in these forest areas. One of the reasons for this situation, according to our view