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大同矿务局广大革命职工遵照毛主帝“中国应当对于人类有较大的贡献”的教导,针对延期电雷管生产与使用中存在的问题,组成以工人为主体,有革命干部、技术人员参加的三结合试验小组,经半年多的反复试验后,于今年六月试制成功了段发雷管。一、主要技术特征:半秒段发电雷管系延期电雷管品种之一。其结构与毫秒电雷管完全相同,只是延期药的
The revolutionary workers of the Datong Mining Bureau followed the guidance of Mao’s “China should make greater contributions to mankind” and aimed at the problems existing in the production and use of electric detonators. The workers were the main constituents, and revolutionary cadres and technicians participated in the work. After three months of trial and error, the three-combination test team successfully implemented the segment-detonator in June this year. I. Main technical features: One of the varieties of electric detonators with delays in the half-second generation of power detonators. Its structure is exactly the same as that of the millisecond electric detonator, except that it is delayed.