(一)大跃进三年来,上海市机械工业属于第一机电工业局系统的各企业完成了五倍于第一个五年计划期间的繁重生产任务,发展了3700多个新品种,一些重要产品产量的增长尤其迅速。如重型机械过去生产的品种和数量极少,現在已能生产采掘、冶炼、轧钢、运输、化肥等许 (I) In the three years since the Great Leap Forward, enterprises in the Shanghai Mechanical and Electrical Industry Bureau belonging to the First Electrical and Mechanical Industry Bureau have completed five times the number of heavy production tasks during the first five-year plan period, and more than 3,700 new varieties have been developed, some of which are important products. The increase in production is particularly rapid. For example, heavy machinery has produced very few varieties and quantities in the past, and now it has been able to produce extracts, smelting, steel rolling, transportation, chemical fertilizers, etc.