Difference between revisions of "D:鉱業"
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− | *[ | + | {{classification2}} |
+ | *[[:Category:D-1:金属鉱業|D-1. 金属鉱業 / Mining of metal ores]] | ||
− | *[ | + | *[[:Category:D-2:石炭・亜炭鉱業|D-2. 石炭・亜炭鉱業 / Mining of coal and lignite]] |
− | *[ | + | *[[:Category:D-3:原油・天然ガス鉱業|D-3. 原油・天然ガス鉱業 / Extraction of crude petroleum and natural gas]] |
− | *[ | + | *[[:Category:D-4:非金属鉱業|D-4. 非金属鉱業 / Other mining and quarrying]] |