In the forty years in China, a great advance of gold assay was made in four aspects, namely, fire assay, wet assay, phase analysis and sampling and preparation of sample.
本文阐述了四十年来我国黄金分析在火法试金、黄金湿法分析、金的物相分析及取样与制样四个方面的进展。
Furthermore, the accuracy of wet assay of gold in experimental sample was studied by means of new reduction sampling formula.
用新的缩分取样公式研究了提金工艺实验样品湿法分析金的准确性。
Double disc single speed metallographic sample pre mill M-2 is a wet grinder, it USES the different size of the metallographic sandpaper, on a variety of metal and alloy samples.
双盘单速金相试样预磨机m - 2是一种湿式磨光机，它利用不同粒度的金相砂纸，对各种金属及合金的试样进行磨光。
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