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单词 to trap up or down
释义

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to trap up or down
to trap up or down: to be found at a higher or lower level after dislocation by a dike or fault: see quots.
ΘΚΠ
the world > the earth > minerals > mineral deposits > features of stratum or vein > [verb (intransitive)] > be dislocated
to trap up1719
1719 J. Strachey in Philos. Trans. 1717–19 (Royal Soc.) 30 969 They observe, as they work to the South West, when they meet with a Ridg it Causeth the Coal to trap up, that is..they find it over their heads, when they are thro' the Ridg: but..when they work thro' a ridg to the North East, they say it traps down, that is, they find it under their feet.
extracted from trapv.3
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更新时间:2024/9/21 3:23:48