1) copositive
偕正
1.
Reference [1] gives necessary and sufficient conditions for symmetric matrices of order n≤5 to be copositive.
文献[1]给出了判定阶数不大于5的对称矩阵偕正性的充分必要条件。
2) copositive matrices
偕正矩阵
3) strictly copositive
严格偕正
1.
Based on these know results we will give necessary and sufficient conditions for symmetric matrices of order n≤5 to be strictly copositive, and present three algorithms which can determine efficiently whether a given symmetric matrix of order 3,4 or 5 is strictly copositive or copositive or not copositive.
本文在此基础上,进一步给出了它们严格偕正的条件,并提出了三个算法,它们能够用来有效地判定3,4,5阶对称矩阵严格偕正、偕正或非偕正。
4) geminal coupling
偕偶
6) geminal dinitro
偕二硝基
1.
According to the structure and synthesis character of the geminal dinitro energetic plasticizers,the current situation about the synthesis,the property and application of geminal dinitro aldehyde acetals,esters and ether energetic plasticizers is summarized with 21 references.
从偕二硝基含能增塑剂的结构和合成特点出发,综述了偕二硝基缩醛类、酯类及醚类等含能增塑剂的合成、性能及应用研究现状。
补充资料：偕偕
1.强壮貌。
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