查询词典 sol

Lead in sol ers for the soldering of thin copper wires of 100 μm diameter and less in power transformers.

用以焊接电源变压器中直径100微米及以下的幼身铜线的焊料中的铅。

In this dissertation, based on glass microspheres and submicron silicon dioxide, the silver-coated core-shell shielding particles were prepared by liquid phase chemical deposition and layer by layer packing technology. The influences of the preparation conditions on the structure of the synthesized core-shell particles were also systemically studied. The conclusions are enumerated as follow:(1) Monodispersed submicron silicon dioxide spheres in the size range of 250～550 nm are synthesized by Sol-Gel method using ammonia as catalyst.

本文在前人研究的基础上设计出以微米级玻璃微珠为基核，采用液相化学沉积法和层层包裹法制备表面包银的核壳粒子电磁屏蔽剂，并对液相化学沉积法和层层包裹法的制备工艺进行了系统研究，取得了以下主要结论：(1)以氨水作催化剂，采用溶胶－凝胶法制备了粒径分布在250～550 nm之间的二氧化硅微球。

In the present dissertation, a surfactant-templated mesoporous silica molecular sieve with high pore volume, high porosity and narrow bimodal mesopore size distribution was synthesized for the first time in a reaction system, which was used usually in the synthesis of mesoporous MCM-41 molecular sieves, by a judiciously controlled two-phase sol-gel processing under basic conditions.

在本论文中，我们通过对一个通常用于制备介孔MCM-41分子筛的反应体系中正硅酸乙酯水解与缩合反应相对速率的精确调控，首次在弱碱性体系中合成了一种具有高孔隙率、大孔体积和双介孔孔分布特征的新型二氧化硅分子筛材料，简记为BMS，并对BMS二氧化硅分子筛中双介孔结构形成的原因及各种可能对其结构和性质产生影响的合成因素如Ammonia／silica摩尔比、组分浓度的变化、表面活性剂烷基链长度的调节、辅助有机物均三甲苯的引入、催化剂的结构和性质、溶剂和助溶剂的极性和用量、老化和干燥条件的变化及合成后水热处理等，利用不同的测试手段如XRD，SEM，TEM，〓Si MAS NMR，TG-DTA，N〓吸附测试等进行了系统的表征研究。

Any method of the citrate sol-gel method, the self-propagating method or the coprecipitation method is adopted to prepare the product required.

采用柠檬酸盐溶胶-凝胶法、自蔓延法或共沉淀法中任一种制备得到所需产品。

Ni0.5Zn0.5Fe2O4 nano-crystalline was prepared by sol-gel self-propagating combustion method, and sintered at 550, 800 and 1050 ℃, respectively. The analysis methods of X-ray diffraction and microwave network analyzer were used to investigate the products after annealing.

中文摘要：采用溶胶-凝胶自燃烧法制备了Ni0.5Zn0.5Fe2O4纳米晶，将其分别在550、800和1050 ℃下二次退火2 h，利用XRD和微波矢量网络分析方法对二次热处理产物及其电磁性质进行了研究。

Composite photocatalysts Fe/ZnO-TiO2 with 12~48 nm in grain size and pure titanium dioxide powder were prepared with self-combustion process of citric acid sol.

采用柠檬酸溶胶自燃烧法制备粒径为12~48 nm的复合催化剂Fe/ZnO-TiO2及纯TiO2粉体。

Synthesis of La_(9.33)Si_6O_(26) Single-phase Ultrafine Powder by Sol-Gel Self-combustion Method

文献名称溶胶凝胶-自燃烧法合成La_(9.33)Si_6O_(26)超细粉体

Self-combustion ; nano-particles ; MnZn ferrie ; sol-gel ; microwave

溶胶-凝胶；自蔓延燃烧；微波；纳米； MnZn铁氧体

Main Products or Services: rubber filling oil; hot oil Sol; 3 # white oil.

主营产品或服务：橡胶填充油；热溶胶专用油；3#白油。

Gum Sticky Ribbon: customized Hot Sol Type can be supplied at different usage

背胶粘扣带：根据不同的用途提供不同的热溶胶类型

Are still several undescribed and unrecorded species which are needed to be processed the formal description and diagnosis.

特别是鲤科与鰕虎科鱼种分类之研究进展，仍有数种未描述种及新纪录种待正式发表。

Can it be that I am unfit for my office?

对于我的职位还会不称职吗？