与"coal seam"相近的词条

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• coal oil
• coal oil mixture
• Coal pneumoconiosis
• Coal product
• coal pyrile
• coal seam
• coal slag
• coal smoke
• coal smoke pollution
• coal stone
• coal tar、coal-tar
• coal tar burn
• coal-tar compound
• Coal tar creosote、coal-tar creosote
• coal tar derivative
• coal-tar disinfectant

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