deep core的用法和樣例：
例句
- When drilling deep holes, the feed movement should be released from time to time.
在鉆深孔的時(shí)候，有時(shí)必須放松進(jìn)給運動(dòng)。 - The new method adopted roof presupporting,deep and medium hole blasting,LHD ore removal and tailings filling.
該采礦方法采用采場(chǎng)預控頂技術(shù)，中深孔爆破，鏟運機出礦，尾砂充填。
