石炭系
CEDict 100318
Traditional 石炭系 Simplified 石炭系
Pinyin shi2 tan4 xi4
English carboniferous system ; coal measure ( geology )
石炭紀
CEDict 100318
Traditional 石炭紀 Simplified 石炭纪
Pinyin Shi2 tan4 ji4
English Carboniferous ( geological period 354-292m years ago )
石炭系
CC-CEDict 200217
Traditional 石炭系 Simplified 石炭系
Pinyin shi2 tan4 xi4
English carboniferous system ; coal measure ( geology )
石炭紀
CC-CEDict 200217
Traditional 石炭紀 Simplified 石炭纪
Pinyin Shi2 tan4 ji4
English Carboniferous ( geological period 354-292m years ago )
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