查询词典 dielectric strength

The numerical results show that lossy dielectric-load can heighten the start oscillation current of absolute instability, and increase depends on the magnetic field strength and the perpendicular-to-parallel velocity ratio of the electrons; The thickness of the lossy waveguide increases the start oscillation length of backward wave oscillation.

结果表明：损耗介质的加载，可以提高绝对不稳定性起振电流，提高的幅度依赖于工作磁场偏离饱和磁场的程度、电子束横纵速度比等；增加波导损耗介质加载的厚度，可以提高竞争模式的回旋返波起振长度。

The results show that the dielectric constant and thermal expansion coefficient increased,the dielectric loss and bending strength desreased with the increasing of anorthite content.

钙长石含量大于50wt%的复合材料中α-石英和方石英的析出增加了材料的热膨胀系数，但对材料的介电性能影响不大。

Applying the classical method,using anisotropic rectangular coordinates,this article educes the field strength expression by electrified cylindroid and cylindrical surface as well as infinite straight lead in linear anisotropic homogeneous dielectric.

应用各向异性直角坐标系的概念，借助经典的定理 E =- xΦ，导出了带电椭圆柱面、圆柱面、无限长直导线在线性各向异性均匀电介质中的场强表达式。

The effects of sintering temperature and holding time on their porosities, flexural strength, and dielectric properties were studied.

研究烧结温度和保温时间对Si3N4多孔陶瓷的微观结构、力学性能以及介电性能的影响。

The effect of the sintering temperature and the mullite content on the dielectric properties and the bending strength has been studied.

研究了烧结温度和莫来石含量对复合材料的介电性能和抗弯强度的影响。

The flexural strength, relative dielectric constant and dielectric dissipation factor of the composite were measured.

研究了碳化硅纤维热处理的温度、时间及热处理方法对制成的复合材料性能的影响。

It has good machinability, high mechanical strength, well dielectric properties and excellent proof tracking resistance.

具有加工性好，机械强度高、电气性能好等特点；有着优良的耐漏电起痕性。

For different surface roughness of electrodes and glycol concentration of glycol/water mixture, pressurized water breakdown experiments are carried out. Experimental results suggest that Mirza's formula is valid and independent of surface roughness and glycol concentration, and it is accumulative for surface polish, glycol additive, and pressurization for the capability to improve electrical breakdown strength. Moreover, the increase of electrical breakdown strength of water dielectric for surface polish is explained with bubble breakdown. Especially, highest stress of 235.5kV/cm observed in glycol/water mixture with a glycol concentration of 80% at a hydrostatic pressure of 12atm is about one time greater than that in pure water at constant pressure.

通过改变电极表面光滑程度和乙二醇浓度，分别进行了加压水介质击穿实验，证实了不同电极表面光滑程度和乙二醇浓度下Mirza关系式仍成立，抛光电极表面、添加乙二醇与加压在提高水介质电击穿能力方面具有可叠加性，将抛光电极表面、添加乙二醇与加压分别进行了比较，特别，在静压12atm、乙二醇浓度80%下，得到实测最高击穿场强为235.5kV/cm，其有效时间归一化后的击穿场强比常压下纯水的相应值提高了112.2%，运用气泡击穿模型对抛光提高水介质击穿场强进行了物理解释。

The company added that exceptional electrical properties including a volume resistivity of 109 ohm-cm and dielectric strength of 225 volts per mil at room temperature are provided.

该公司还补充说，这种涂层具有优异的电性能。在室温下体电阻率为109Ω/cm和介电强度为225v/mm。

The highest voltage that a relay can switch reliably under given conditions is usually determined by the spacing between contacts and the dielectric strength of the gas inside the relay.

继电器在给定条件下能够可靠切换的最高电压通常是由继电器内部触点之间的间距和气隙的介电强度决定的。

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。