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遵照毛主席关于“开发矿业”的指示,为了加速坑道掘进速度,提高掘进效率,减轻劳动强度,我矿及有关单位在学习外单位先进经验的基础上,结合我矿的实际
In accordance with Chairman Mao’s instructions on “mining development”, in order to accelerate the speed of tunneling and raise the efficiency of tunneling and reduce the labor intensity, based on the advanced experience of the units under study and with the practice of mine