A colorless crystalline hydrocarbon, C14H10, obtained by fractional distillation of coal-tar oils and used in dyes, drugs, and explosives.是什么意思_A colorless crystalline hydrocarbon, C14H10, obtained by fractional distillation of coal-tar oils and used in dyes, drugs, and explosives.在线翻译_英语_读音_用法_例句