查询词典 FRAC

Thus the universal nature of frac-tal structures in the weak interactions of solitary waves is analytically established. Tounderstand the fractal regime further, using asymptotic methods along separatrix orbits,a simple second-order map is derived.

为了更深入的理解分形出现的机制，沿着separatrix轨道运用渐近分析，我们得到一个简单的二阶映射，这个映射描述了动力学方程中动量的变化关系，经过变量变换以后，它不含任何参数，因此对于广义非线性Schro¨dinger方程中孤立波的弱相互作用都是成立的。

SEM analysis finds that the fractures are intercrystalline plus quasi-cleavage fractures under quasi-motionless state;with the increase of stress intensity factor,fractureschange from transcrystalline quasieleavage fractutes to microvoid-coalescence dimple plus cleavage frac-tures,The increase of fracture toughHess of 8090Al-Li alloy under high stress intensity factor is associ-ated with the deformation mechanism and the change of precipitation Free Zone of grain boundary.

扫描电镜分析发现，准静态下的断裂为沿晶和准解理混合断口；随着应力强度因于的增加，断裂从准解理断裂过渡到准解理和显微空穴聚集的韧窝断裂舶混合断口。高应力强度因于率下断裂韧度的提高与其变形机制和晶界无沉淀区的变化有关。

It was found that the impact toughness is obviously decreased when the laths of the acicular ferrite are coarsened,and the fracture morphology is changed from the dimple frac...

当针状铁素体条束比较粗大时，-50℃冲击试样的断裂方式从韧窝断裂转变为解理断裂，韧性明显下降。

In all other intervals of frequencies $\geq \nu_H$, the spectral amplitude acquires an extra factor $\frac{\Omega_m}{\Omega_{\Lambda}}$, due to the current acceleration, otherwise the shape of spectrum is similar to that in the decelerating models.

由于宇宙的加速膨胀，在所有频率$\geq \nu_H$的频段，功率谱的形状类似于在加速膨胀模型的情况，但功率谱的幅值获得了一个额外的因子$\frac{\Omega_m}{\Omega_{\Lambda}}$。

Incubation and pot experiments were carried out to study the changes of inorganic-P frac- tions in calcareous soils after application of pig slurry and P fertilizer and their contribution to the amount of P uptake by rye grass.

通过室温培养一盆栽试验研究了施用猪粪和磷肥后石灰性土壤无机磷组分的变化以及不同无机磷组分对黑麦草吸磷量的贡献。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。