查询词典 dispersion

Cerium oxide has a wide range of uses, but many applications require special physics properties of particles. It is particle morphology, size, structure, dispersion, surface properties ,this physical and chemical properties, that determine their application field, but the traditional preparation process is difficult to control cerium oxide particle morphology and physical properties, thus making it difficult to meet the application requirements.

氧化铈有着广泛的用途，但很多方面的应用都要求其粒子具有特殊的物性，粒子的形貌、尺寸、结构、分散性、表面性能等物化性能决定其应用领域，但传统制备工艺难以控制氧化铈粒子的形貌及物性，从而难以满足应用的需求。

The results indicate that improving temperature to reflux, using low polarity solvent as dispersion medium and proper molar ratio of tetrabutyl titanate to stearic acid can bring out good modification. The function of tetrabutyl titanate is to react with the surface hydroxyl groups and adsorbed H2O on the powder particles to produce new binding sites such as M—O—Ti—OC4H9and M—O—Ti—OH, which can easily react with the carboxylic acid. As temperature increases from room temperature to reflux temperature, the reactions between RCOO- and Ti change from coordinate bonds to covalent bonds, which makes the carbon chains of stearic acids more strongly bound with the powder particles surface.

研究结果表明，提高处理温度、适当增加复合改性剂中硬脂酸的量并选用极性弱的有机溶剂可达到比较理想的改性效果；钛酸四丁酯的作用是与粉体粒子表面的羟基以及吸附水反应产生偶联点，如M—O—Ti—OH，这些偶联点易于与羧酸反应；在低温时RCOO-与偶联点的Ti之间以配合物的形式发生作用，在回流温度下处理时，主要发生酯化反应，使硬脂酸更牢固地嫁接到粉体粒子表面，改性效果更好。

Since the liquid ink includes the colorant surface-treated by a polymer comprising units derived from at least a nitrogen-containing polymerizable monomer, it exhibits improved chargeability, reduced conductivity variability and improved dispersion stability at a lower amount of charge control additive.

因为该液体墨水含有用聚合物进行表面处理的着色剂，该聚合物含有的单元来自至少一种含氮的可聚合单体，所以在较少量电荷控制添加剂时，它具有改善的荷电率，降低的导电率可变性以及改善的分散稳定性。

In addition to their field distributions, the overall influences of core chirality on cutoff and dispersion characteristics are studied.

系统地分析了芯区手征导纳对其模式截止特性和色散特性的影响，并研究了这种波导结构的模场分布特性。

It shows that negative chirp can improve the dispersion characteristics of system.

分析结果表明，利用负啁啾可以改善系统的色散特性。

We find that this new phenomenon is very interesting, and looks contrary to the usual Christiansen effect, but can be explained with Lorentz dispersion model accurately together, so we call it reverse-Christiansen effect. Exactly at this frequency, the refractive indices of these tow materials are equal, and absorption coefficients are very small.

我们发现，这个新现象非常有趣，它与克里斯坦森效应表面上相反，但都可用Lorentz色散模型给予精确地解释，於是称它为反克里斯坦森效应，在该效应出现的频率两种材料的折射率相等，且吸收系数都非常小。

But with transmission rate's improvement and longer transmission distance, chromatic dispersion restriction to system are more serious.

但随着传输速率的提高和传输距离的加长，色散对系统的限制就显得越来越严重。

Thus, the total chromatic dispersion can actually be zero.

因此，总色散量实际可以为零。

Numerical simulation and analysis on photonic crystal fiber with closing to zero and flattened chromatic dispersion.

接近于零色散的色散平坦光子晶体光纤的数值模拟与分析。

However, chromatic dispersion is a characteristic of both multimode and single-mode fiber.

然而，色散现象是多模和单模光纤两者都有的特徵。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷