Last Updated
：2025/12/04
nip-out
（ plural ）
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(mining) The situation where the roof and thill approach each other, diminishing the usual thickness of the coal seam or extinguishing it completely.
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nip-out
The crew halted drilling when a sudden nip-out ahead reduced the coal seam to nearly nothing.
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The crew halted drilling when a sudden nip-out ahead reduced the coal seam to nearly nothing.
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