查询词典 barium

C and keeping time of 4 h, aiming to improve the total electrical conductivity of single phase barium zirconate.

但是，当ZnO在SZY_(10)中的添加量达到6 mol%时，材料的离子传导系数急剧下降。

Piezoelectric properties of materials can also be produced by artificial methods, that is, with iron power to impose polycrystalline material of an electrostatic field, such material is commonly used in barium titanate and lead zirconate titanate.

材料的压电性能也可以用人工的方法产生，那就是在具有铁电多晶材料上施加一个静电化场，这类材料中常用的是钛酸钡和锆钛酸铅。

Abasic review on dielectric nonlinearity and electric tunable mechanism wasperformed in view of thermodynamics, ferroelectric domain, polar nanoregion,field induced phase transition, grain boundary layer and AC dielectricnonlinearity. The dielectric nonlinearity phenomena in barium stannate titanateceramics were studied and the field dependences of dielectric constant and losstangent were showed.

关于低温介电弛豫行为与极性微区关系的讨论涉及到了弛豫铁电体与扩散相变铁电体之间的相容关系，作者认为所有的扩散相变铁电体都应该是弛豫铁电体或潜在的弛豫铁电体，它们的区别仅在于能够观测到介电弛豫现象的测试频率范围不同。

The best method and condition of preparing barium ferrite nano-particles with hexagonal flake and with acicular were discussed.

然后对这两种样品进行了电磁参数和反射率的测试。

The aim of this paper is to synthesize nano-particles of barium ferrite with hexagonal flake and acicular and to study the effect of the different geometrical samples on microwave-absorbing performance.

本文目的是通过合成纳米级六角片状和纳米级针状钡铁氧体样品，研究这两种几何样品对微波吸收性能的影响。

Methods Two hundred patients with digestive symptoms were randomly divided into two groups, Cola group and aerogenic powder group received respectively CocaCola/Pepsi drinks and aerogenic powders with barium sulfate suspension for double contrast examination of upper gastrointestinal tract.

200例罹患消化道症状患者，分成产气粉组和可乐组，每组100例，分别采用产气粉和可口可乐或百事可乐饮料与硫酸钡干混悬剂配合进行上消化道双对比造影检查。

Methods Two hundred patients with digestive symptoms were randomly divided into two groups, Cola group and aerogenic powder group received respectively Coca-Cola/Pepsi drinks and aerogenic powders with barium sulfate suspension for double contrast examination of upper gastrointestinal tract.

200例罹患消化道症状患者，分成产气粉组和可乐组，每组100例，分别采用产气粉和可口可乐或百事可乐饮料与硫酸钡干混悬剂配合进行上消化道双对比造影检查。

The mineral system of alite calcium barium sulphoaluminate with good binding characteristic was synthesized with chemical reagents as raw materials.

以分析纯化学试剂为原料，对以阿利特与硫铝酸钙钡为主导矿物的高胶凝性矿相体系进行了研究。

Steven Jones, a PhD physicist formerly of Brigham Young University, says of the 史蒂文琼斯,博士学位的物理学家,以前的杨百翰大学,说的 composition 组成:: [8][ 8 ]Given the mix of trace metals present in anomalously high concentrations in the WTC dust such as zinc, copper and manganese and barium, the formation of iron-aluminum-rich spherules, I have argued that significant aluminothermic reactions occurred, with likely ingredients to include powders of aluminum, iron oxide, copper oxide, zinc nitrate, sulfur, and potassium permanganate.

由于组合的微量金属元素，目前在异常高浓度在世贸中心灰尘如锌，铜，锰，钡，可以形成铁富铝球粒的，我认为，重要的铝热反应的发生，可能与成分，包括粉末铝，氧化铁，氧化铜，硝酸锌，硫，和高锰酸钾。

The effect of puring agricultural ammoniacal chloride with barium sulphide and ammoninacal liquor was compared.

比较了硫化钡及氨水对农用氯化铵的净化效果，结果表明，硫化钡的净化效果较好，制得的工业氯化铵，白色度较高，且生产成本较低。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。