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1)  hyperphoric change
换置
2)  permutation [英][,pɜ:mju'teɪʃn]  [美]['pɝmju'teʃən]
置换
1.
Arithmetical realization of permutation of three-dimensional track-and-column braiding procedure;
纵横步进编织过程置换算法的计算机实现
2.
Research on Zigzag-based permutation data encryption method;
基于Zigzag置换算法的数据传输技术的研究
3)  Replacement [英][rɪ'pleɪsmənt]  [美][rɪ'plesmənt]
置换
1.
Experimental and kinetic studies on methane replacement from methane hydrate formed in SDS system by using pressurized CO_2;
CO_2置换CH_4水合物中CH_4的实验和动力学
2.
Applied anatomy of percutaneous replacement of tricuspid valves;
经皮三尖瓣置换的应用解剖
3.
Clinical Effect of Treatment of Osteoarthritis Resulted from Congenital Dislocation of the Hip with Total Hip Replacement;
全髋关节置换术治疗成人先天性髋关节脱位伴骨性关节炎
4)  displacement [英][dɪs'pleɪsmənt]  [美][dɪs'plesmənt]
置换
1.
Study of Displacement Adsorption of N_2 by O_2 on Surface of Polycrysta lline Wvia Threshold Energy of Electron-stimulated Desorption;
电子诱导脱附研究钨表面O_2对N_2的置换吸附
2.
A separation process involving the removal of Ag~+ and Pd~(2+) by displacement with Fe and flotation separation of Cd~(2+) from other metal ions by(NH_4)_2SO_4-KI-bu-RhB was studied.
研究了以铁置换除去Ag~+、Pd~(2+)等金属离子;(NH_4)_2SO_4-LO-丁基罗丹明B浮选分离Cd~(2+)的行为及其与常见离子分离的条件。
5)  substitution [英][,sʌbsti'tju:ʃən]  [美][,sʌbstə'tjuʃən]
置换
1.
Modified high temperature PbNb2O6 ceramic with perfect piezoelectric properties and technology were obtained by means of a small amount of Me2+ substitution and rare elements oxides doping.
偏铌酸铅是一种性能很有特色却又制备困难的高温压电陶瓷材料,而采用少量Me2+置换和微量稀有元素氧化物添杂方法,获得了压电性能和工艺性能均十分优良的改性偏铌酸铅高温压电陶瓷材料。
2.
When chromate ettringites are dipped into sodium sulfate solution which the concentration of sulfate is 1240mg/L, the amount of the substitution of sulfate for chromate in it increases with time.
把铬酸型钙矾石放在SO_4~(2-)浓度为1240mg/L的硫酸钠溶液中长期浸泡并跟踪监测发现,随着浸泡时间的延长,铬酸型钙矾石中的CrO_4~(2-)被SO_4~(2-)替换的比例升高,6个月时其置换率达到了近26%。
6)  replace [英][rɪ'pleɪs]  [美][rɪ'ples]
置换
1.
An application of temporary bypass and aorta replacement during the esophagectomy for the patients with advanced esophageal carcinoma—8 case report;
临时性主动脉旁路通道加主动脉置换切除食管癌8例报告
2.
It is necessary for running geological prospecting units as enterprise to firstly replace the property and staff's position, to establish modern enterprise system, to carry on scientific management and to regularize the operation.
地勘单位转企改制必须首先进行产权“置换”和职工身份“置换” ,在此基础上建立现代企业制度 ,进行科学管理和规范操作 ,文章就此提出了一些具体措施和办法。
3.
165 million m3 dry gas tank is directly replaced by city gas in the pipe gascorporation of Qingdao city.
5万m3干式气柜采用城市燃气直接置换,经合理确定置换范围,标准及过程,成功地进行了低压16。
补充资料:置换
分子式:
CAS号:

性质:(一)replacement;displacement  一种单质替代化合物中一种原子或原子团而生成另一种:单质的反应,其反应通式可表示为M+AB→A+MB。例如,活泼金属从不活泼金属盐溶液中置换出不活泼金属的反应:Fe+CuSO4→Cu+FeSO4。(二)substitution  即碱基对的置换。DNA分子中一对碱基被另一对碱基所取代的现象。由于碱基置换只涉及DNA分子中一对碱基的改变,是点突变的一种,属微小损伤。根据碱基的取代方式,置换可分为转换和颠换两类。前者是DNA链中的一个嘌呤被另一个嘌呤或是一个嘧啶被另一个嘧啶所置换,后者是一个嘌呤被一个嘧啶或者一个嘧啶被一个嘌呤所置换。能引起置换的诱变剂很多,如亚硝酸、羟胺和各种烷化剂等。

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