= white trap n.
| 单词 | θ5751 |
| 释义 | the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > trap > basalt > white rock (2) white rock1789 = white trap n. white trap1853 a pale-coloured altered basaltic rock occurring in coal-bearing formations; cf. trap, n.5 |
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