查询词典 dielectric coefficient

Fourth, presents the main factors which affect the dielectric properties after poling and piezoelectric coefficient are the modifiability of the displacement between cation and anion center in oxygen-octahedral structure and the existence of MPB.

第四，提出本系统极化后介电常数及压电系数表现主要影响因素为氧八面体中阴阳离子偏移量的改变量及 MPB之存在。

And it is systematically investigated about the influence of some parameters variations on the discharge. These parameters are secondary electron emission coefficient, the permittivity and thickness of dielectric layer, the length of gas gap and gas pressure.

对充He的AC PDP单元的多脉冲放电特性进行了模拟研究，并对保护膜的二次电子发射系数、电介质层厚度和相对介电常数以及气体间隙距离与压力等参量对放电特性的影响进行了系统全面而详细地分析讨论。

A decrease in Qef value (x = 0 ~ 0.10) with increasing x was dominated by a decrease in the degree of 1:2 order. A increase in relative dielectric constant (x = 0 ~ 0.50) and the positively change of temperature coefficient of resonance frequency (x = 0.10 ~ 0.50) with increasing x were dominated by a decrease in the proportion of [NbO6] octahedra.

扭曲的 [NbO6] 八面体之比率主导本系统之相对介电系数随著 x 的增加而升高以及 x = 0.10 ~ 0.50之共振频率温度系数随著 x 的增加而往正的方向变动的趋势。

Through the analysis, we also find that the change of defect waveguide edge dielectric rod radius and wave guide\'s width are advantageous for enhancing the coupling efficiency of waveguide with the resonant cavity.3. The coupling relation of between the resonant cavity and waveguide has been analyzed, and according to the coupled mode theory, transmission coefficient expression of every port has been derived.

通过分析也发现适当改变缺陷波导边缘介质柱的半径、缺陷介质柱与波导间介质柱的半径及波导的宽度，都有利于提高波导与谐振腔之间的耦合效率。3、从理论上分析了谐振腔与波导间的耦合关系，根据耦合模理论导出了各端口传输系数的表达式。

PTFE referred to F4, because of its excellent dielectric properties and corrosion-resistant chemical (high temperature of the molten fluoride elements and the state of alkali metal), non-absorbent, non-stick, not conductive, low coefficient of friction and not Ageing properties, and is widely used in chemical, petroleum, textile pharmaceutical, metallurgy, machinery, electronics, electrical appliances, electricity, food and aviation, military and scientific research in all walks of life, I plant the development of metal bellows, compensation , PTFE bellows F4 tetrafluoroethane compensator, F4 metal composite compensation, anti-corrosion steel liner tetrafluoroethane pipe, steel-lined tetrafluoroethane three links, elbow, Stone, the reaction tower, tower chloride, lining tetrafluoroethane valve Doors, tetrafluoroethane pads and steel-lined polypropylene pipes and accessories, and earnestly solve the user in the production process by the various anti-corrosion problems.

聚四氟乙烯简称F4，由于其优异的介电性能与耐化学腐蚀性(高温下的氟元素和熔融状态下的碱金属外)，不吸水、不粘、不导电、摩擦系数低及不老化等性能，而被广泛应用于化工、石油、轻纺制药、冶金、机械、电子、电器、电力、食品及航空、军用与科研等各行各业中，我厂开发的金属波纹管、补偿器，四氟波纹管F4四氟补偿器、F4金属复合补偿器，钢衬四氟防腐管件，钢衬四氟三通、弯头、四通、反应塔、氯化塔、衬四氟阀门，四氟垫片以及钢衬聚丙稀管道及配件，切实解决了用户在生产过程中所遇到的各种防腐问题。

A homogeneous dielectric structures due to internal heating is different from the thermal deformation can not be freedom it will produce heat stress; a heated uniformly inhomogeneous media due to the different coefficient of thermal expansion will produce thermal stress; and thermal structure is more subject to external constraints is to generate thermal stress causes.

一个均匀介质结构由于内部受热不同，其热变形不能自由进行时，将会产生热应力；一个受热均匀的非均匀介质结构，由于热膨胀系数不同，也会产生热应力；而热结构受到外部约束更是产生热应力的原因。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。