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单词
smooth drilling
释义
smooth drilling
smooth drilling
[
′smü
th
′dril·iŋ
]
(engineering)
Drilling in a rock formation in which a fast rotation of the drill stem, a fast rate of penetration, and a high recovery of core can be achieved with vibration-free rotation of the drill stem.
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更新时间:2025/10/8 2:27:02