strip extraction coal-pillar mining 条采煤柱回收
extraction mining
提取矿业
以上为机器翻译结果，长、整句建议使用 人工翻译 。
At the same time, extraction sectors like mining and energy production grew just 1.7% from 7.1% in 2010.
FORBES: Russian Economic Growth Beats Estimates
Congress included a few favored ones you might not think of as manufacturing--mining, oil extraction and engineering.
FORBES: Burgers, Snow and Pork
He has shared the latest extraction data with no fewer than 16 mining companies.
FORBES: Companies, People, Ideas
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