球体的

This paper first analyses the stress acting on the cable by means of tiny segment analytical methods, establishes cable's stress equation, and finds out the relation between the tethered aerostat's position and its stress acting by cable; then, based on the momentum and moment of momentum theorem, the longitudinal nonlinear dynamic equation is established; Finally a numerical simulation of dynamic responses of the balloon and cable to gust are carried out.

本文首先通过微段分析法对缆绳进行受力分析，建立缆绳的受力方程，找出了系留气球在空中的位置同系留气球所受缆绳拉力的关系；然后根据动量和动量矩定理建立了球体的纵向非线性运动方程；最后通过数值仿真计算，对系留气球的纵向动态响应特性进行了分析。

In this paper,the area ratio of plane figure affine transformation in space is investigated,and the transformation equation of λ multiple of area is got , the area change of plane figure under affine transformation in space is studied, a important property of three axis ellipsoid is given and proved.

探讨了空间场的仿射变换下平面图形的面积比，推导出λ倍积变换方程式，进而探讨了空间场的仿射变换下平面图形面积的变化规律，给出并证明了三轴椭球体的一个重要性质。

On land, meridional, a bispherical moon, revealed in imperfect varying phases of lunation through the posterior interstice of the imperfectly occluded skirt of a carnose negligent perambulating female, a pillar of the cloud by day.

陆地上，朝着南方，以双球体的月亮为标志：一个正徜徉着的丰腴、邋遢女人那没有完全遮住的裙子后面，从裂缝里露出太阴月那不完整、起着变化的月相。白天，用云柱指示方向。

Based on the properties of the saturation function, it was proved that the stability region of such dynamical systems can be decomposed into Cartesian product of an invariant set of their adjoint systems and a sufficiently large ball.

结合饱和函数的特殊性质，证明了此类系统的稳定域可分解为伴随系统的不变集与一个足够大球体的笛卡尔积。

"Convex:Having a surface or boundary that curves or bulges outward, as the exterior of a sphere."

凸起的：具有向外弯曲或凸出的表面或边界的，如球体的外表面。

"Convex:Having a surface or boundary that curves or bulge s outward, as the exterior of a sphere."

凸起的：具有向外弯曲或凸出的表面或边界的，如球体的外表面。

A property that can be quantitatively described, such as the volume of a sphere or the length of a vector.

可量化的值可以用数字形式描述出来的特性，例如球体的面积或者向量的长度

The breakneck speed of the Puppis A neutron star, plus an apparent lack of pulsations from it, is not easily explained by even the most sophisticated supernova explosion models.

"这个宇宙泡状球体的难迷惑就在于在自然条件下是如何弄出这么强有力的大炮"Winkler说到。高速可以被解释成由常见的高能量爆炸引起，但是模型非常复杂并很难适用于真正的爆炸。

This paper gives group representation of the spherical rotor in three-dimension space; it searches the rotor orientation in state space that consists of outputs of 96 sensors, but traditional single-nod-search method may get into local minima.

对转子球体的三维旋转进行了群描述；针对96个传感器的输出所构成的位置空间进行搜索，而传统的单点搜索会陷入局部极小值。

With precise model of satellite motion, osculating parameters and earth shape, the determination of the position information of each pixel is precise, and the accuracy of direct location can be improved to be 3km.

该方案通过建立精确的卫星运动轨道模型、卫星摄动模型，采用对称椭球体的地球形态模型和融入卫星姿态的地面扫描点位置的计算方法，使直接定位精度达到3个像元。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。