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为了迅速改变地质技术装备陈旧不足状况，实现坑道掘进机械化，我们以“鞍钢宪法”为指针，实行两个“三结合“，克服了重重困难，设计试制了地质勘探I型（DK－I型）电瓶机车（全貌图见图1），并取得了初步生产试验效果。
In order to rapidly change the lack of obsolete geological equipment and realize the mechanization of tunnel excavation, we adopted the “Anshan Iron and Steel Constitution” as a guideline, implemented two “three combinations”, overcame many difficulties, and designed and trial-produced geological exploration type I (DK-I type). The battery locomotive (see Figure 1 for complete picture) has achieved initial production test results.