一、前言 我国地广物博,随着社会主义建设的飞速发展,全国铁路纲的建设与日俱增;第一个五年计划内新建铁路即有4,000余公里,其中未计算旧綫修复与专用綫的鋪设。尚有更多的綫路需要建设;所以今后机车的修理任务也就增大了。我国旧有的机车修理厂数量很少,又格于设备陈旧,工作效率不高,所以国家在头二个五年计划内要建造几 I. INTRODUCTION With the rapid development of socialist construction in China, with the rapid development of socialist construction, the construction of the national railway program is increasing day by day; the newly built railway in the first five-year plan is more than 4,000 kilometers, of which the old line repair and special line have not been calculated. layout. There are still more routes to build; so the task of repairing locomotives will increase in the future. The number of old locomotive repair shops in China is very small, but it is also old and outdated, and the work efficiency is not high. Therefore, the country will build a few in the first two five-year plans.