Sims says measurements of the grade, mineral matrix, and size of the ore deposit appear favorable to commercial extraction.
希姆斯说对矿品位、矿母及矿床大小的测量对商业提取显得十分有益。
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A life-size image of Britain's Prince William and Kate Middleton is carried past a London bus near Trafalgar Square by people working on a commercial video shoot for a supermarket chain.