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我队1956年和57年山地工作中,在没有动力,没有机械设备的情况下,根据部颁先进经验结合我队工作条件,经工人与技术员同志的研究,参照各队所用的风车式样,经过一些改良,制成了脚踏离心式扇风机,解决了深达200公尺以上的通风排烟问题,非但提高了工作效率,还保证了工人身体的健康和安全,兹将制造的规格和使用效果介绍于下:
In the 1956 and the 57th year of our work in the mountains, our team had no motivation and no mechanical equipment. According to the minister’s advanced experience combined with the working conditions of our team, the comrades of the workers and technicians studied with reference to the windmills used by each team. Some improvements have resulted in a foot-operated centrifugal fan, which solves the problem of ventilation and smoke exhaust that is more than 200 meters deep. It not only improves work efficiency, but also ensures the health and safety of workers’ bodies. It will be manufactured in specifications and use. The effect is described below: