必要条件

Results A necessary solvability condition was established in terms of the parity interlacing property of each element in .

结果给出鲁棒镇定问题可解的一个必要条件，即的每个元素都应具有parity interlacing性质。

Good interpersonal relationships are the survival and development of the necessary conditions.

良好的人际关系是生存和发展的必要条件。

A dramatic reorganization of interpolar microtubules into a highly organized central spindle between the separating chromatids is required for the initiation and execution of cytokinesis.

在向两极分离的染色单体之间的微管很规律地重组成高度有序的中心纺锤体，这是开始和进行胞质分裂的必要条件。

The precision index is defined,and the necessary conditions of interpretability are analyzed.

定义了模糊模型的精确性指标，给出了模糊模型解释性的必要条件。

The precision index is defined, and the necessary conditions of interpretability are analyzed. The initial fuzzy system is identified using fuzzy clustering algorithm.

首先定义系统的精确性指标，给出解释性的必要条件，利用聚类算法辨识初始模型。

The former is the important condition for the occurrence of a disease, which the deficiency of the latter is the intrinsic factor for the occurrence of a disease.

前者是疾病发生的重要条件，后者的亏虚则是疾病发生的必要条件。

Based on that, a sufficient and necessary condition of diagnosability for invalidation fault is given.

基于此，给出了失效故障的可诊断性的充分必要条件。

The necessary and sufficient conditions under which the form invariance is a Lie symmetry is presented.

建立了系统的运动微分方程，给出了系统在特殊无限小变换下的形式不变性的定义和判据以及系统的形式不变性是Lie对称性的充分必要条件。

At last one property about attractors is discussed and a necessary and sufficient condition for an invariant set to be an attractor is established.

最后证明了吸引子的一个性质并给出了不变集为吸引子的一个充分必要条件。

In Chapter 4, for a discrete dynamical system defined on a compact metric space, we prove a necessary and sufficient condition for an invariant set to be a periodic orbit.

第四章，对于定义在紧致度量空间上的离散动力系统，给出了一个不变集是一条周期轨道的一个充分必要条件。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。