It is based on detailed and reliable exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes.

 
  • 此类定义应基于对地质露头,壕沟,凹点,巷道和钻孔区域的详细平且可靠的勘探,取样和测试的信息。
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