单词：deep core
deep core的用法和样例：
例句
- When drilling deep holes, the feed movement should be released from time to time.在钻深孔的时候，有时必须放松进给运动。
- The new method adopted roof presupporting,deep and medium hole blasting,LHD ore removal and tailings filling.该采矿方法采用采场预控顶技术，中深孔爆破，铲运机出矿，尾砂充填。
单词：deep core 相关文章
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Did you ever dream of digging a hole so deep it came out the other side of the earth? Let's play that game again, using a little physics. First we have to imagine that our tunnel is lined with super-heat-resistant material so we can pass through laye
英语时差8，16