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Bergbau
☊
矿业， 采矿
☊
kuàngyè, cǎikuàng
Bergbau ☊ 
矿业， 采矿 ☊ kuàngyè, cǎikuàng Bergbau ☊ 矿业， 采矿 ☊ kuàngyè, cǎikuàng