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单词 sinking-and-walling scaffold
释义 sinking-and-walling scaffold
[`siŋk·iŋ ǝn ¦wȯl·iŋ `ska´fōld]
MINING ENGINEERING
A platform designed for use in shaft sinking to enable sinking and walling to be performed simultaneously. Also known as Galloway sinking and walling stage.
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