... single-beam spectrophotometer 单光柱分光光度计 slate coal 板岩煤 single-effect distillator 单效蒸馏器 ...
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... 岩石流 rock glacier; rock stream; stone river; stone run; stone stream; talus glacier 岩石煤 slate coal 岩石平 hard heading ...
基于1个网页-相关网页
coal slate 煤质板岩
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