壳的

At last, for the limition of the swarm model based on minimal circumcircle method, we extend the model to n-dimensional spaces; study the aggregating swarm behavior and flocking behavior; and analysis the stability of system.

本文最后针对基于最小外接圆方法的群集模型的局限性，在前人的研究基础上，采用求解任意维空间点集的凸壳的方法，将该模型推广到n维空间中，对n维空间中群体的聚集以及迁徙行为进行建模和稳定性分析。

His family ran a feed mill, and like any God-fearing citizen of the Cornhusker state, his mother prayed that her son would play football at the University of Nebraska.

他家经营着一台饲料机，和居住在"糠撕客"州（Cornhusker意为"剥玉米壳的人"，美国内布拉斯加州居民的绰号）所有虔诚的公民一样，他的妈妈祈望自己的儿子能在内布拉斯加大学踢足球。

The variation regularity is discussed that the stress, temperature and deformation of the current-carrying annular plate are altered with the variation of loaded electromagnetic parameters. According to the relation between the deflection of annular plate and the parameters, it is proved that the deformation and stress can be controlled by changing the electromagnetic and mechanics parameters.

变换电磁参量，讨论了载流环形薄板应力、温度及变形随外加电磁参量的变化规律；根据圆环形板的挠度与参量之间的变化规律，并通过实例证实了可以通过改变电、磁、力场的参数来实现对板壳的应力、应变状态的控制。

Finally, we establish the exponential decay rates for Naghdi's model under some checkable geometric conditions on the middle surface.

算例的计算结果与文献中给出的实验值吻合较好，并表明壳体的剪切效应在一些情形下会对环肋圆柱壳的稳定性产生一定的影响。

If the owner prefers to leave into the wild and collect their own shells, it is important that they choose the proper type of shell for their hermit crab to inhabit.

如果车主愿意离开的野生和收集自己的炮弹，但重要的是，他们选择适当类型的壳的寄居蟹居住。

And he said: Your pain is the breaking of the shell that encloses your understanding. Even as the stone of the fruit must break, that its heart stand in the sun, so must you know pain.

他说，你们的痛苦就是包裹你们的知识的壳的碎裂，即使那果实的核也要碎裂，那果心也终将挺立在阳光下，因此你们必然感受到痛苦。

This is the main research contents in this paper Enhance the operating efficiency of turbomachine、saving energy become a common understanding. In order to improve the efficiency、output power、comprehensive utilization level of high energy and enhance the operation reliability, numerical simulation of flow field inside turbomachine for several difference uses were studied with our professional dominance based on three practical engineering project. Based on these the axial and centrifugal blowers were designed.

而提高叶轮机械的能量转换效率、节能降耗已成透平机械行业的业内共识，本论文研究利用专业优势，围绕提高几种叶轮机械效率、输出功率、高能量综合利用水平、提高机组运行的可靠性等目标，以三个实际工程研发项目为基础，研究分析了多种特殊用途的叶轮机械内部流动情况，在此基础上，设计研究了轴流与离心两型动车组冷却通风机，并提出烟气轮机与船用涡轮增压器压气机蜗壳的优化方案等。

Related to sea slugs, nudibranchs are shell-less mollusks that display some of the most vibrant colors found anywhere in nature.

有关联的是海蜗牛，nudibranchs是很少壳的软体动物显示其最多的充满活力的色彩在各处的自然界。

Cosmic spherules were discovered among artificial heavy mineral grains in Changzhogou formation, Taoyuan, Lunxian;Changzhogou, Jixian of Hebei and the Ming Tombs , District of Beijing.

河北滦县、蓟县、北京十三陵三个地方的常州沟组宇宙尘是在人工重砂的重矿物中发现的，产在古老沉积岩地层中的砾岩和砂岩里，大部分是铁质宇宙尘，形态各异，表面构造多种多样，内部构造各有不同，具Fe—Ni金属，核与壳的化学元素分布不匀匀，化学成分与深海宇宙尘相似。

These tiny peepers line the upper part of the mantle (seen as orange dots on this specimen) and work together to detect shadows and movements.

这些微小的眼睛位于壳的上部（那些橙色的小点就是它们的眼睛，如图所示），它们一起工作来感知外界微小的变化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。