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coal | |||
boghead coal | |||
bitumite | |||
bituminous | |||
black coal | |||
pitch coal | |||
bituminous coal; soft coal | |||
bright coal | |||
bituminite; boghead; fat coal | |||
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soft coal; pit coal; bituminous coal | |||
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bitumenite; bituminite | |||
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bituminous coal; bitummite | |||
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fat coal | |||
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fat coal | |||
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gas coal |
烟煤: 230 phrases in 25 subjects |