定中心

After the onset of meiosis reinitiation, the GV stated to migrate along microtubules to the animal pole and attached to the site beneath oocyte membrane, that followed by GVBD.

通过激光共聚焦显微镜观察，未成熟的卵母细胞中存在5种类型的微管，并且有两个微管组织中心锚定在卵母细胞突起下方。

I was born in Burdine, Kentucky, in the heart of the Appalachian coal-mining country.

我出生于阿帕拉契山脉煤矿区中心的肯塔基州柏定市。

I was born in Burdine, Kentucky, in the heart of Appalachian coal-mining country.

我出生于阿巴拉契山脉煤矿区中心的肯塔基州柏定市。

The equation of the large rectangular loop source cloud expresses induced electromotive force at any field points accurately, the apparent resistivity derived from that is not subject to edge effects; the observation is still made with central loop pattern and in near zone, and the simple and direct relationship between induced electromotive force and apparent resistivity could be maintained.

大定源回线公式可以准确地表示任意场点的感应电动势，由此导出视电阻率无边缘效应影响；观测按照中心回线方式并保持在近区进行，可使感应电动势和视电阻率之间的转换简单而直接。

Prolonged reaction time or higher reaction temperature is beneficial for further boosting the conversion of benzyl alcohol.

而且，钨物种主要以无定形的形式存在，这样高分散的富含催化氧化活性中心的钨物种提高了对1， 3-丁二醇的催化氧化性能。

Biometry and safety form are tested by Jiangsu electronic product quality inspection center.

产品经中国军事医学院消毒检测中心消毒杀菌质量监定检测。

By central difference in time and space and boundary conditions, equilibrium equations of warp are transformed into the definite equations and solved by Newton\'s iteration.

通过在时间和空间上对拖网曳纲平衡方程组进行中心差分以及首尾边界条件的处理，将该方程组转换为定解代数方程组，并采用牛顿迭代法求解。

The Luding county town plays a crucial role in the economic development, which is the center of the politics , economy and culture of the whole county .

泸定县城是泸定县政治、经济、文化的中心，在经济发展中起着至关重要的作用。

Under the cases of the linear interconnected systems with all its subsystems are one dimension, a theorem to judge the properties of single loop interactions has been given; the study also indicated that the properties of interactions cann't independent of the properties of subsystems in the multi-loop interaction conditions, and a all field root locus method has been proposed to decide the properties of interactions; a interaction stabilizable theorem has been given, and the efficacy of interactions with respect to the interconnected systems has been configured, Some primary results are reported which are induced by using a method of computer aided test to study block interactions, the stationary feedback efficacy of closed loop interactions have been discussed and a stability guess has been proposed.

本文提出互连系统的合作稳定性概念及其原理，给出了互连系统的本原稳定度、稳定中心、回路关连的级数以及关连的性质等基本定义；并在此基础上对线性互连系统进行关连分析，给出了一系列涉及到关连与互连系统稳定性关系的命题、引理、定理及其证明；其中，在子系统都是一维的线性定常互连系统情况，得出了单回路关连性质判断的定理；并指出在多回路关连条件下，关连的性质不能独立于子系统的性质，以及用全域根轨迹法判断关连性质的方法；给出了关连可稳定理，并对关连对互连系统的影响作用进行了分析。本文还用机辅试验的方法研究块阵关连并给出一些初步结果，本中还探讨了回路关连的静态反馈作用并提出一个判稳猜想。

F/D! When the plane that cuts the paraboloid is not perpendicular to the axis, elliptic segment of paraboloid is gained, whose focus is not in the geometric center of the parabolic surface, but is more or less shifted towards periphery, depending on the cut angle.

当抛物面切割面不垂直于轴线，就得到椭圆形的截面，它的焦点不在抛物面的几何中心，差不多移到边缘附近，随切割角度而定。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。