题目内容：
管棚钻机应具备可钻孔的_______，又要有破碎地层中_______的高冲击力。
参考答案：
选择题：管棚钻机应具备可钻孔的_______，又要有破碎地层中_______的高冲击力。
- 题目分类：石家庄铁道大学隧道工程
- 题目类型：选择题
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