- outward longwall
- 前进式长壁开采
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
outward longwall
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Raton Basin — The Raton Basin is a geologic structural basin in southern Colorado and northern New Mexico. It takes its name from Raton Pass and the town of Raton, New Mexico. In extent, the basin is approximately 50 miles east west, and 90 miles north south,… … Wikipedia
