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以压缩空气为动力的打眼机械是
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以压缩空气为动力的打眼机械是
A、气腿凿岩机
B、液压凿岩机
C、岩石电钻
D、煤电钻
时间:2021-09-03 16:51
关键词:
联大
河南理工大学
井巷工程
答案解析
A@#@A
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以压缩空气为动力,产生冲击、旋转带动钎子凿出炮眼的钻眼机械称为:()
以压缩空气为动力,产生冲击、旋转带动钎子凿出炮眼的钻眼机械称为:()
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