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单词
thaw pipe
释义
thaw pipe
thaw pipe
[
′thȯ ‚pīp
]
(mining engineering)
A string of pipe drilled into a string of drill rods that is frozen in a borehole in permafrost, through which water is circulated to thaw the ice and free the drill rods.
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更新时间:2025/10/30 5:21:30