Last Updated
：2025/12/07
cauldron bottom
Noun
UK
obsolete
slang
Japanese Meaning
（英国、採鉱用語、旧式）炭鉱で、坑道の天井の一部を形成する、炭層内に存在する大きく丸い岩塊。落下すると重大な危険を伴う。
（ plural ）
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(UK, mining slang, obsolete) A large, round mass in a coal seam, forming part of the roof of a coal mine passage; known for posing a serious danger from falling.
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cauldron bottom
The foreman inspected the cauldron bottom carefully before allowing the crew to pass beneath it.
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The foreman inspected the cauldron bottom carefully before allowing the crew to pass beneath it.
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