1.
Gold and silver are often extracted together from the same ores or recovered as by-products from the extraction of other metals.
金银经常混合存在于同一矿石中,或作为其它金属提纯过程后的副产品而混在一起。
2.
These metals may be purified by a technique called zone refining.
这些金属可以用所谓“逐区提纯法”来提纯。
3.
Purification of Dy,Ho and Er Metals by Distillation
金属镝、钬、铒蒸馏提纯效果的研究
4.
Preparation and Purification of 8-Hydroxyquinoline Metal Complexes
8-羟基喹啉金属配合物的制备与提纯
5.
The science that deals with procedures used in extracting metals from their ores, purifying and alloying metals, and creating useful objects from metals.
冶金术研究从金属矿中提炼金属、提纯与合成金属，以及用金属制造有用物质过程的技术
6.
The purifcation of Dy, Ho and Er metals has been studied by the method of vacuum distillation.
本文研究了金属镝、、的真空蒸馏提纯效果。
7.
Separation and Purification of Metals in Discarded Printed Circuit Boards
废旧印刷电子线路板中多金属的分离提纯
8.
Study on Preparation of Extra-Low-Oxygen Rare-Earth Metal Yttrium by Ca-CaCl_2 Fused-Salt Methodand Electrochemistry Purification Method;
用Ca-CaCl_2熔盐法和电化学提纯法制备高纯低氧稀土金属钇（Y）的研究
9.
Notice that in metallurgy" to extract" means to take the pure metal out of its ores.
要注意在冶金方面“提取指的是从矿石中提炼纯金属”。
10.
Study on Purification of Recombinant Human Interferon α2b by IMAC(Ion Metal Affinity Chromatography);
应用金属鏊合层析法提纯重组人干扰素α2b的研究
11.
Gold is purified by fire.
黄金经过火炼提纯。
12.
A Research on the Agglomeration Craft of Pure Binary Alloy Powder;
二元合金系纯金属粉末烧结工艺研究
13.
non-ferrous extractive metallurgy
有色金属提取冶金学
14.
Simultaneous Determination of Trace Metallic and Non-Metallic impurities in Ultra-Pure Water by ICP Spectrometry
超纯水中痕量金属和非金属杂质的同时测定
15.
refined sugar; refined oil; to gild refined gold- Shakespeare.
精糖；经过提纯的油；为纯金镀金-莎士比亚。
16.
The relative degree of mixture with a base metal; fineness.
成色,纯度和基本金属的相对混合程度；纯度
17.
Application of thiol cotton concentration and separation technique for the purification of chemical reagents
巯基棉富集分离技术在化学试剂提纯上的应用——盐类中痕量重金属杂质的去除
18.
testing methods for determination of metallic elements in highly purified water
高纯水金属含量测定方法