井下作业 [矿业] borehole operation
- 地震发生后,这座距离震中大约15公里的煤矿,迅速将200余名井下作业矿工全部撤离,无人员伤亡。
After the earthquake, the epicenter about 15 kilometers away from the mine, quickly operating more than 200 miners were underground to evacuate all without casualties.
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