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。
2
You would need a jeweller's loupe the size of the Sun to grade this diamond.
要评价这颗钻石的等级，需要使用像太阳那么大的珠宝商专用放大镜。
3
The table relates sheathing thickness, nail size and spacing, sheathing grade and allowable unit shear to enable determination of an appropriate construction configuration.