多重

The macroscopic rheological parameters and microstructure parameters were closely related, it is helpful to explain the essence of multiple rheological properties through the analysis of which the wax evolution process and microstructure of the crude oil which is waxy and high viscosity; the yield time of gelled waxy crude oil monotone increases along with the decreasing of rate of shear (the time of stress effect prolonged), there was power function relationship between them, it can be expressed with ; when adding diesel oil to Sudan crude oil, dilute proportion bigger the eccentricity degree of paraffin particles were bigger too, that was to say the symmetry of wax crystal was better, the wax crystal form fabric more hardly when the intermolecular interaction was smaller; in the light of macroscopica, the fall extent of the abnormity temperature, solidifying point and viscosity could be larger along with the accretion of dilute proportion, as a result, it's rheological properties could be improved.

SD原油析蜡点为94℃，析蜡高峰为50～30℃，异常点为40℃；其蜡晶颗粒细小、对称性差，所以具有较大的比表面能，容易形成联生、联锁结构；损耗角曲线与储能模量曲线或损耗模量曲线的交点所对应的温度与原油凝点或倾点温度非常接近，大约在39℃左右；也就是说，含蜡原油粘弹特性曲线的交点可以表征其流动性；原油宏观流变参数与微观结构参数密切相关，原油析蜡过程及蜡晶微观结构分析有助于诠释易凝高粘原油多重流变特性的本质；胶凝含蜡原油的屈服时间随剪切速率的降低而单调增加，二者显然存在幂函数关系，可用关系式描述；当SD原油加柴油稀释处理时，稀释比越高，蜡晶颗粒的偏心度也越大，亦即蜡晶对称性越好，分子间作用力越小，蜡晶颗粒越不易形成结构，宏观表现为异常点、凝点及表观粘度等流变参数下降的幅度越大，流动性越好。

Delay differential equations; variational structure; Minimax theory; Morse theory; multiple periodic solutions; subharmonic solutions; Z_p geometrical index

基础科学，数学，数学分析时滞微分方程；变分结构；极小极大理论； Morse理论；多重周期解；次调和解；广义Z_p几何指标

Multicolored scales mottle the bark of a sycamore tree near Lake Como, Italy.

多重颜色的鳞屑斑点在一棵枫树的树皮靠近科摩湖，意大利。

Chapter 7 "Birds" and the Expressions of Poetic Nature"Flyingbirds Poems" present various and outstanding expressions ofpoetic nature by the multeity of visual angles, the abundance of theimages and the diversity of the styles.

主要表现为视角的多重性、形象的丰富性和风格的多样性，因而创作出许多各具风采的诗歌佳作。

I would say that China is a multi-faceted power.Let me explain what I mean.

在我看来，今天的中国究其实质，是一个具有多重性特征的大国。

Severe multicollinearity means the variance of the estimated parameter will be very large.

严重的多重共线性意味着被估计参数的方差将非常大。

This dissertation gives full consideration to the multicollinearity problems that may appear among proxy variables of ownership structure.

对股权结构各替代变量之间可能出现的多重共线性进行了全面考虑。

Factors affecting the correlation analysis, the existence of multicollinearity.

对影响因素进行相关性分析，存在多重共线性。

One hand, in the application of multilinear regression , the harm of multicollinearity is very serious, but the existence of multicollinearity is widespread.

一方面，在多元线性回归的应用中，变量之间多重相关性的危害十分严重，但其存在却又十分普遍。

Based on this, an on-line evaluation model of process stability with statistical method and partial-least-square regression was set up which overcome the multicollinearity of input parameters.

采用统计分析和偏最小二乘回归方法提出了过程稳定性在线评价模型，克服了输入变量严重多重相关性的问题。

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。