本文主要论述块状矿石显微镜下矿物含量点测法的估计定律，以及此定律的简要证明、测量统计中最低限度样本容量的确定及误差范围。
In this paper, estimating law for mineral content, simple proof of the law and determining lowest sample size and error range in measure and statistics are discussed.
一个工人正在南非钻石公司也称Safdico在哈勃罗内建立的国家艺术钻石科技园内用显微镜检查矿石。
A worker at the South African Diamond Corporation, or Safdico, which has built a state-of-the-art diamond technology park outside Gaborone, examines stones under his microscopes.
显微镜下，矿石为中粒至非晶质。
用光学显微镜和扫描电镜观察了还原后矿石的微观结构变化，电镜下观察到“铁晶须”的存在。
Microstructural observations by microscope and SEM show that there exist whiskers in the ore after reduction.
用光学显微镜和扫描电镜观察了还原后矿石的微观结构变化，电镜下观察到“铁晶须”的存在。
Microstructural observations by microscope and SEM show that there exist whiskers in the ore after reduction.
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