sign of permutation是什么意思

网络释义

用法例句

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

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

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

Applied anatomy of percutaneous replacement of tricuspid valves;

经皮三尖瓣置换的应用解剖

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

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

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。

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。

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％。

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

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。

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。