近代木材采运工业发展的特点是广泛应用伐区联合机。世界上已制成了许多不同用途、主机、运动原理、重量、功率和工作装置的伐区联合机,因而可以对伐区作业机械化的发展方向做一初步分析 Modern timber mining industry is characterized by the development of widely used cutting machine. There have been many cutting-edge combination machines of different uses, mainframes, movement principles, weights, power and working equipment in the world, so that a preliminary analysis of the direction of the mechanization of cutting operations can be made