Mining and Geology. A distinctive body of rock, ore, sediment, etc. A vertical eruptive channel in and below a volcano which opens into the crater…
| 单词 | θ6247 | 
| 释义 | the world > the earth > minerals > mineral sources > 			[noun]		 > source rock > containing diamonds (1)		 pipe1877 Mining and Geology. A distinctive body of rock, ore, sediment, etc. A vertical eruptive channel in and below a volcano which opens into the crater… | 
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