Then,it is showed that exact L2-controllability for the system by applying the Hilbert uniqueness method combined with some results from the theory of Diophantine approximate.
先用算子半群方法和提升结果[9]建立了Rayleigh梁方程解的正则性;再用Hilbert唯一性方法结合Diophantine逼近理论的某些结果得到了系统的精确L2-能控性。
In this paper,it is presented a necessary and sufficient condition for the likelihood estimates about parameters a and b to be finite,positive and unique when the software failure data is interfailure data or grouped data.
文章分析了Ｇ－ＯＮＨＰＰ模型在完全共效数据和不完全共效数据情况下，运用极大似然法求解参数ａ和参数ｂ时，存在有限正数解ａ、ｂ的充要条件作了分析，并且证明了在此充要条件下，其参数解是唯一的。
The necessary condition that X(v)exists limit cycles is that the 2×2 matrix A have complex eigenvalues, and some sufficient conditions that X(v)exists limit cycles and unique limit cycle are given,where f(v) may be non-homogeneous function.
得到了向量场有极限环的必要条件是2×2矩阵A有复特征值,以及讨论了极限环存在和唯一的一些充分条件,这里f(v)也许是非齐次函数。
Because the solution is not unique,the L X 1 adjustment method is proposed in this paper.
为了直接处理含有粗差的变形观测数据，文献［１］提出了Ｌ－Ｘ－１平差模型，但这种Ｌ－Ｘ－１平差模型解的唯一性较差。
In the perspective of culture , the “uniqueness” of his patriotic poems is manifested in that his patriotic passion is couched in his admiration for t.
文学史家朱自清曾多次称许闻一多是抗战以前“唯一的爱国诗人” ,对此 ,学术界似乎缺少比较集中的关注和比较精细的解读。
Existence and Uniqueness of Global Solutions of a Free Boundary Problem Modeling Tumor Growth;
一个肿瘤生长自由边界问题解的整体存在性和唯一性
Existence and uniqueness of global strong solutions of the initial boundary value problem for a class of systems of reaction-diffusion equations in biophysics;
一类多维反应扩散方程组初边值问题整体强解的存在唯一性
Research on the existence and uniqueness of a differential equation positive solution;
一类微分方程正解存在唯一性的研究
The exceptions are '=', '==' and '!
唯一的例外是“=”、“==”和“!
global(ly) unique identifier
[港]全球唯一代号
a solitary goal--the top!
唯一的目标?顶峰！
my one and only hope
我唯一的希望 [得救的唯一办法]
"There is only one good, knowledge, and one evil, ignorance. -- Caesar"
唯一好的是知识,唯一坏的是无知。-- 恺撒
She was her mother's sole confident.
她是母亲唯一信任的人。
type and only genus of the family Esocidae.
狗鱼科的唯一的模式属。
His Achilles' heel was his pride.
他唯一的弱点是骄傲。
His only hobby is growing flowers.
他唯一的爱好是种花。
uniqueness of viscous liquid motio
粘性流体流动的唯一性
Wine is his only indulgence.
酒是他唯一的嗜好。
He was the only person awake at the moment.
他是那时唯一醒着的人。
uniquely representable in the form....
唯一能用……形式代表。
his only recourse was the police; took refuge in lying.
他唯一的求助是警察。
She is solely to blame.
她是唯一应受责备的。
That's the only alternative.
那是唯一可行的方法。
The only method that figures is a bomb.
唯一可行的办法是爆炸。
The only exception is the frees."
唯一的例外就是林木。”