查询词典 necessary and sufficient conditions

In the last section of the chapter, sufficient and necessary conditions about weak invertibility or weak inverse for a kind of NFA are given.

进而又讨论了它们也是判定FA为弱可逆或弱逆的必要条件的情形。

In this paper, we shall use both direct constructions and recursive constructions to prove that the necessary conditions for simple Kirkman frames of type t with index 4 are also sufficient.

本文通过直接构造和递推构造的方法证明了组型一致的(3， 4)单纯支架存在的必要条件也是充分的。

Based on the article [1], we discuss and prove two sufficient and necessary conditions of multiplicative convex functions.

摘要在文献[1]的基础上，讨论并证明了积性凸函数的两个充分必要条件，同时证明了积性凸函数的另外两个定理。

In the end, this paper provides the sufficient and necessary conditions of weak consensus and strong consensus.

最后，给出弱一致性和强一致性的判别方法。

The sufficient and necessary conditions for team localization are proposed.

对于队局限的充份和必需的情况被计划。

Sufficient and necessary conditions which guarantee the convergence of the scheme are given and then proved with inductive method.

给出了所提出的学习控制律收敛的充分必要条件，并采用归纳法进行了证明。

The sufficient and necessary conditions for its convergence are established.

这个方法的特点是对于动力学参数未知的系统，可以通过实验方便地确定满足收敛条件的学习控制器参数。

What's more important is that it is considered as the dynamic mechanism, and the sufficient and necessary conditions of further development.

本文不仅把网络化作为一种现代区域发展现象加以认识，更重要的是把它作为一种再发展的动力机制和充要条件。

Some sufficient and necessary conditions of the full symmetric real matrix is full definite matrix are discussed.

讨论了全对称实矩阵是全正定矩阵的几个充分必要条件。

The sufficient and necessary conditions which Fuzzy subalgebra of direct product Boolean algebra can be decomposed as direct product of two Fuzzy subalgebras are obtained.

进而分别定义了在对偶模意义下直觉模糊群的外直积与内直积。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。