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含煤岩系
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含煤岩系
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coal-bearing strata
含煤岩系
一套在成因上有共生关系并含有煤层(或煤线)的沉积岩系。又称含煤沉积、含煤地层、煤系、含煤建造等。
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Beidi Sect of Taoism
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BeiDou navigation satellite system
Beidou satellite
Beidou Satellite Based Information System for Marine Fishery Production
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Beifu Imperial Troops
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Beihai Five Dragon Pavilion
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