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硅质
| 角页岩
| 硅质 | |
| tech. | silica |
| 角页岩 | |
| eng.geol. | fornfels |
| geol. | hornfels; hornfelsic; corniferous rock; hornstone |
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| silica | |||
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硅质 : 354 phrases in 20 subjects |
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