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raise boring machine
释义
raise boring machine
raise boring machine
[
rāz ¦bȯr·iŋ mə‚shēn
]
(mining engineering)
A machine that is used to drill pilot holes between levels in a mine, and to ream the pilot hole to the finished dimension of the raise.
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英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。
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更新时间:2026/8/16 5:14:43