1) stage displacement
分步置换
1.
The paper studies the high lead-tellurium copper anode sludge treatment process of a domestic plant,it shows that silver and tellurium could be control in copper removal solution after stage displacement through potential,with silver dust increases from 99% to 99.
通过电位控制分步置换分铜后液中的银和碲,银粉品位由原来的99%提高到99。
2) fractinal precipitation-substitution
分步结晶一置换
1.
by fractinal precipitation-substitution.
本研究用分步结晶一置换法联合生产硫酸铜和硫酸亚铁，工艺简单，原料胜用率较高，成本低，有实用价值。
3) Synchronous nuclear replacing
同步核置换
4) step-by-step transformation
分步变换
1.
For a continuously stirred tank reactor (CSTR) with nonlinear dynamic characteristic,the paper addresses a controller design approach based on a novel step-by-step transformation.
本文针对具有非线性动态特性的连续搅拌釜式反应器（ＣＳＴＲ），提出了一种基于分步变换的控制器设计方法。
5) step-by-step setting
分步设置
1.
Based on the instruction of constructionist educational outlook, this paper explores the principles of step-by-step setting, changing setting, autonomous positioning and rethinking transposition while constructing problem scene, which should be followed in mathematics teaching.
以建构主义教育观为指导,探讨数学教学活动中关于创设问题情境时应该遵循分步设置、变式重置、自主定位和反思换位等原则。
6) displacing seperation
置换分离
补充资料：分步结晶
一种古老的用于分离化学性质相近的金属化合物的方法。此法依靠化合物间溶解度的微小差别，通过重复操作而达到分离的目的。钽、铌复合氟化物（如K2TaF7和K2NbOF5·H2O）的分步结晶，锆、铪复合氟化物（如K2ZrF6和K2HfF6）的分步结晶,铷、钾草酸盐的分步结晶，轻稀土硝酸盐和硝酸铵(或硝酸镁)复盐的分步结晶等，都曾经在工业上应用。此法近年来虽然多被溶剂萃取法和离子交换法所代替，但在某些条件下仍然应用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条