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伐区岔綫的拆轉和新綫的鋪設工作量很大。根据一九六四年調查,岔綫修建工作量約占木材生产中全部准备工作量的40%,使用劳力約占全部木材生产工人的5%。为了减少伐区准备作业人数和作业量,提高劳动生产率,近几年来林业机械研究設計所、铁力林业局研究与設計了三种型式的鋪軌机車,并分别在双子河和铁力林业局进行了試驗。
The demolition of the cutting line in the cutting area and the laying of new lines are very heavy. According to the investigation in 1964, the construction of the Sui line accounted for about 40% of all the preparation work in timber production, and the use of labor accounted for about 5% of all timber production workers. In order to reduce the number and workload of cutting area preparations and improve labor productivity, in recent years, the Forestry Machinery Research and Design Institute and Tieli Forestry Bureau have studied and designed three types of railway locomotives for rail locomotives, which were respectively carried out at the Shuangzihe and Tieli Forestry Bureaus. Test.