查询词典 modification

In chapter three, various theories and experience on the dispersion of nano-powders proposed by former researchers were generalized and reviewed. Technical standards and experimental process for determining technological parameters were suggested for the dispersion of nano-scaled metal oxides in aqueous medium according to their surface wettability, surface charge, the dependence of surface charge on pH and the compatibility of surfactants with pH and pH adjusting agents. Based on these suggested standards and experimental method, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powders were prepared successfully and surface modification on these nano-powders was also achieved.

本文第三章通过大量的文献调研，归纳总结了前人在纳米粒子分散技术方面的理论和经验，并在此基础上根据纳米氧化物粉体的表面润湿性、表面电性及其与分散介质pH值的关系、表面活性剂及其与pH调节剂的配伍关系设计了纳米氧化物水分散体系的工艺规范以及确定工艺参数的通用实验步骤，成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，为纳米材料在氧化锌压敏电阻中的应用创造了第二个前提条件。

In this thesis, three major achievements were made in theoretical study: conditions and rules for preparing nano-powders by chemical precipitation are analyzed from the point of view of thermodynamics and kinetics, the principle, standards and experimental method for the aqueous dispersion of nano-scaled metal oxide powders were proposed and verified, mathematical model of nano-filming addition of dopants by chemical coprecipitation was established. In experimental research, nm-ZnO, nm-Bi〓O〓, nm-Co〓O〓 and nm-MnO powder with spherical shape, narrow particle size distribution and small particle size were prepared successfully, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powder were prepared successfully and surface modification on these nano-powders was also achieved, 0-3 nanocomposite ZnO varistors with nm-ZnO, nm-TiO〓and nm-MnO respectively were prepared successfully by conventional mechanical attrition, and exhibited much better electrical properties than those of conventional varistors.

综上所述，本文在理论研究方面取得了三项成果：（1）从热力学和动力学角度推导并分析了液相化学沉淀法制备纳米粉体的反应条件和规律，（2）提出了纳米氧化物的水分散体系的设计原理、规范和通用实验步骤，（3）提出了共沉淀的数学模型和计算方法；在实验方面所取得的成果有：（1）成功制备了粒度小、分布窄、形貌对称的纳米氧化锌、纳米氧化铋、纳米氧化钴和纳米氧化亚锰，（2）成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，（3）成功地进行了纳米氧化锌、纳米二氧化钛和纳米氧化锰对压敏电阻的0—3复合掺杂实验，试样性能远优于常规压敏电阻，为实现压敏电阻的高能高压化提供了新的方法和思路。

Our upper mounts are offset to allow you to retain your stock sway bar without any interference or modification.

并且上部的安装座的移位可以让你保留原厂的SWAY BAR而不需要做任何的调整和改装

"Regulated by the endocrine system, it is derived from a modification of sweat gland s."

乳腺由内分泌系统调节，从汗腺变化而来。

In such situations modification of the text is not desirable because it might create syntactically incorrect code.

在这种情况下，更改文本并不必要，因为这样可能会产生语法上错误的代码。

Any modification to the surface was simply a matter of dragging the vertices and the tangency handles.

针对表面所作的任何修改只是简单的托拽顶点和切线手柄。

This last modification is completed on 10 May but there are no specific orders about the production of the tank destroyer.

不过对于坦克歼击车的装甲防护问题没有明确的命令。

The relationship of modification level and △TEG(the eutectic temperature difference between modified and unmodified alloy) was established.

利用自主开发的铝合金热分析系统，研究了Sr加入量、变质后保温时间对ZL104合金冷却曲线的影响，建立了变质等级与变质前后共晶温度的降低值△TEG之间的对应关系。

SiO2 aerogels were produced from TEOS as silicon resources by sol-gel method and surface modification at ambient pressure.

以正硅酸乙酯为硅源，采用溶胶－凝胶法和表面修饰工艺，在常压条件下制备了SiO2气凝胶。

By means of the Miedema formation energy model for binary system with the Tanaka modification by excess entropy and the Chou geometric model for ternary system, the interaction relation between rare earth element La and the constituent elements of Sn Pb alloy system was analyzed.

传统的Sn60 Pb4 0软钎料合金中添加微量稀土元素La( 0 0 2 4 %)，显著抑制了其显微组织中围绕先析出富Pb相的粗大的富Sn相晕圈的形成，实现了金属学组织的均匀化，并进而提高软钎料合金的高温拉伸强度 70 % [1] 。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。