查询词典 von

In the low frequency of densities of states of phonons, there are less Von Hove sharps than in the high frequency.

在低频段，声子振动模式密度中范霍夫奇点峰比较少，而在高平段，范霍夫奇点峰明显的增多。

At the request of James I of Scotland, the first Observants from the province of Cologne came to the country about 1447, under the leadership of Cornelius von Ziriksee, and founded seven houses.

在请求苏格兰国王詹姆斯一世，第一次从Observants省的科隆来到该国约1447年的领导下，科尼利厄斯冯Ziriksee ，并创办了房屋。

But back to Von and his place in th e rotation, do you worry at all about integrating Tracy and Ron back into th e mix when they return; especially given how well the offense is rolling rig ht now and how high the energy has been in their absence?

但是说回到伟佛和他在队中轮转的位置，你是否担心当T -Mac和Ron Ron回来以后如何融入队伍。特别是更好的融入现在这么好的进攻系统，这么有能量的表现。

The main research tasks and results are as follows:(1) Through comparing the stress intensity factor of compact tension specimen calculated by finite element software with the theoretical value, the feasibility of calculating fracture parameters of crack tip in ABAQUS software was verified.(2) The relationship between the elastic modulus of the material and research scale was studied based on deriving the cohesive stress theory and other relevant theories. And the elastic modulus of the material on meso-scale was determined.(3) Global model and sub-model of the finite element were built in th...e macro-scale, and stress-strain field nearby the crack tip was analyzed, and the results show that the detailed stress-strain in the crack tip could be obtained by using the sub-model technique.(4) In meso-scale, the crack growth model was also established by assuming the crack propagating along the grain boundary, and the detailed stress-strain field in the crack tip was obtained.(5) The effect of crack length on Von Mises stress, and maximum principal stress and strain was analyzed in meso-scale when equivalent KI equals 30MPa.m1/2. And the results show that except for crack tip area, the stress-strain distribution in whole specimen is not affected.

主要完成研究内容和取得成果如下：(1)利用有限元软件计算出紧凑拉伸试样的裂纹尖端应力强度因子KI值，其结果与理论值一致，从而验证了利用ABAQUS计算裂纹尖端相关断裂参量的可行性；(2)在研究内聚应力等相关理论的基础上，推导出了研究尺度与材料弹性模量的近似关系，并确定了介观尺度上的弹性模量；(3)在宏观尺度上建立了全局有限元计算模型和子模型，得到了裂纹尖端应力应变场分布，结果表明利用子模型技术获得比较准确的裂纹尖端应力应变场分布是可行的；(4)在介观尺度上利用平均晶粒尺度的方式建立了裂纹沿晶扩展模型，得到了裂纹尖端断裂过程区的微观应力应变场；(5)当应力强度因子为30MPa.m1/2时，分析了介观尺度上在裂纹沿晶扩展过程中裂纹长度对Mises应力、最大主应力和应变的影响，结果表明，裂纹扩展长度对试样整体应力应变分布影响不大，而对裂纹尖端区域有较大影响；(6)介。。。

Lorenz shared his house with geese, von Frisch lived among honeybee hives, and Tinbergen spent his days with stickleback perch and sea gulls.

劳伦兹在家里养了一群鹅，冯弗里希住在蜂窝环绕的房屋里，丁柏根则天天和棘背鲈鱼和海鸥呆在一起。

Lorenz shared his house with geese, von Frisch lived among honeybee hives, and Tinbergen spent his days with stickleback perch and sea gulls.

劳伦兹在家里养了一群大雁，冯·弗里希住在蜂窝旁边，而丁柏根则把他的时间都花在了棘鱼、鲈鱼和海鸥上。

And von Neumann looked upon the Machine, and saw that it was crufty.

冯·诺依曼注视着机器，洞察了它的混沌。

Officials say James Von Brunn, an elderly white supremacist, is now being investigated as a potential suspect.

官方称詹姆斯·凡·布鲁恩，一位年长的白人优越论者，作为嫌疑犯正在被调查。

President of Germany Paul von Hindenburg appoints Adolf Hitler as Chancellor of Germany.

1933年的今天，德国总统保罗·凡·兴登堡任命阿道夫·希特勒为德国大臣。

That was fine for Von Braun—but it was not yet the sort of military hardware that Germany wanted.

这对凡·布劳恩是好的——但是它仍不时德国想要的那种军事硬件。

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。