在毛主席的无产阶级教育路线指引下,为了建立教学、生产劳动、科学研究三结合的新体制,我们在一年级时即结合怀丰公路IP42处爆破工程,学习了《公路爆破》课程。在师生的共同努力下,经过五天时间,我们边学边干,完成了从测量、绘制地形图到爆破设计等一系列工作,并交付施工。在完成药室掘进及装药堵塞后,于一九七四年七月十三日正式起 Guided by Chairman Mao’s proletarian education line, in order to establish a new system of integrating teaching, production and scientific research, we studied the blasting course in Highway 1 at the IP42 department of Huafeng Road in the first grade. With the concerted efforts of teachers and students, we completed a series of tasks ranging from surveying, mapping and topographic design to blasting design after five days of training and delivered construction. After the completion of the medicine tunneling and the blockage of the charges, it was officially launched on July 13, 1974