1) back elimination
反向消除
1.
After getting rough reduction by pruning,and whole really reductions with back elimination,reduction pruning and discernibility matrix based heuristic reduction algorithm are compared.
该文从属性约简出发,对候选约简进行剪枝,得到了粗约简,并进行反向消除,得到一个知识系统的所有约简,并比较了约简剪枝算法与启发式约简算法。
2) buck
[英][bʌk] [美][bʌk]
消除补偿反向
3) elimination
[英][i,limi'neiʃən] [美][ɪ,lɪmə'neʃən]
消除反应
1.
The impact of elimination conditions on yield was studied.
研究了消除反应条件对收率的影响。
2.
A preferential 1,2 elimination reaction of syn diethyl (2-acetylamino-1-bromo-2-(p-methoxy- phenyl)ethyl)phosphonate 1 rather than the anticipated nucleophilic substitution reaction under basic conditions is described in the present paper.
与文献 报道的甲基磺酸酯离去基团相比,在碳酸钾存在下,反应原料中的α- 溴原子作为相对较弱的离去基团导致很 低的转化率;而在1,8 -二氮杂双环[5,4,0] -十一碳 -7 -烯(DBU)存在下,由于α- 溴原子较强的电负性,其诱导 作用使得邻位β- 氢原子较易与碱作用,因而导致1,2消除反应。
3.
The propanedinitrile is synthesised from ethyl cyanoacetate by amination and elimination reaction.
由氰乙酸乙酯与氨反应生成氰乙酰胺 ,再经过消除反应制得丙二腈。
4) elimination reaction
消除反应
1.
To improve the synthetic procedure of vinylene carbonate,chlorination was carried out in CCl_4 at 55 ℃ and the elimination reaction was carried out in ethyl acetate under nitrogen atmosphere at 50 ℃.
对碳酸亚乙烯酯合成的现有工艺进行了改进:氯化反应在55℃,四氯化碳作溶剂下进行;消除反应则以乙酸乙酯作溶剂,50℃氮气保护下进行。
2.
Investigative results about effect of alkali on β-elimination reaction in variable transition-state theory were enunciate
阐述了可变过渡态理论中关于碱对消除反应影响的研究结果。
3.
91 kJ/molrespectively for elimination reactions of the MN and MN~+.
该文用ab initio和MNDO方法计算研究了硝酸甲酯(MN)及其自由基正离子(MN~+)的平衡几何构型、电子结构和氢转移消除反应。
5) antielimination
反式消除
6) converse delete
反向删除
1.
In order to get the minimum reduction in information systems,this model adds a converse delete action until the deleteaction stops,which guarantees the completeness of the algorithm.
基于此理论本文提出了一种基于布尔矩阵的新的属性约简完备算法,并在此基础上加了一个反向删除过程,直到不能再删为止,保证了算法的完备性。
补充资料：Ik(反向运动)
ik (反向运动)
inverse kinematics(ik)反向运动是使用计算父物体的位移和运动方向，从而将所得信息继承给其子物体的一种物理运动方式。
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