1) zone smelting
逐区精炼
2) zone melting
区熔精炼
1.
The methods of extracting and refining tellurium presently were mainly soda roasting,autoclaving in general basic solution,sulfating roasting,oxidative leaching in acid solution,solvent extraction,emulsion liquid membrane,microbial method,electrorefining,vacuum distillation and zone melting etc.
目前分离提纯碲的方法主要有苏打粉焙烧法、碱性高压浸出法、硫酸化焙烧法、氧化酸浸法、萃取法、液膜法、微生物法、电解精炼法、真空蒸馏法、区熔精炼法等,其中电解精炼法得到的碲的纯度达到99。
3) microzone refining
微区精炼
5) large-scale zone-refining
大型区域精炼<冶>
6) batch zone refining
分批区域精炼
补充资料：耽耽逐逐
1.瞪目逼视而急欲攫取。语本《易．颐》:"虎视耽耽﹐其欲逐逐。"《汉书．叙传下》"六世耽耽"唐颜师古注引作"虎视耽耽，其欲浟浟"，曰:"耽耽，威视之貌也。浟浟，欲利之貌也。今《易》浟字作逐。" 2.形容贪婪追逐貌。
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参考词条