英语释义

1. the ability of a material to store electrical potential energy under the influence of an electric field measured by the ratio of the capacitance of a capacitor with the material as dielectric to its capacitance with vacuum as dielectric — called also dielectric constant

片语

relative permittivity[电] 相对介电常数

effective permittivity有效介电常数

liquid permittivity液体电容率

permittivity measuring介电常数的测量

dyadic permittivity双积介电系数

static permittivity翻译

vacuum permittivityThe physical constant ε0, commonly called the vacuum permittivity, permittivity of free space or electric constant, is an ideal, (baseline) physical constant, which is the value of the absolute (not relative) dielectric permittivity of classical vacuum. Its value is:

permittivity tensor[电]

Gaussian permittivity高斯介电系数

clamped permittivity[电]

英汉例句

• the theory and method of measuring the electrostatic force and the permittivity of vacuum in parallel plate capacitor by electronic balance are introduced.

  介绍了用电子秤测量平行板电容器两极板间的静电力和真空电容率的原理和方法。

• there is the permittivity vacuum. it is all up there.

  这儿还有真空中的介电常数，看，全在这里。

• the resonance and tunneling problem of pairing conjugate structure consisting of negative permittivity and negative permeability materials were studied by using transfer matrix methods.

  利用转移矩阵方法，研究了负介电常数材料和负磁导率材料组成的双层共轭结构的共振隧穿问题。

• epsilon zero is the permittivity of vacuum.

  0是真空中的介电常数。

• composite meta-material, which has both negative permeability and permittivity simultaneously within some frequency ranges, is a great discovery on physics and electromagnetism in this century.

  异向介质是本世纪初物理学和电磁学的重要发现，它是等效介电常数和等效磁导率同时为负数的人造介质。

• then a further discussion of the possibility to achieve af/pstm system location of the index image through the calculated the permittivity and index of liquid.

  探讨了由此可进一步测量液体的介电常数，算出折射率，从而实现af/pstm系统折射率图象的定标问题。

• microwave techniques are nowadays wide spread throughout wireless communication, material processing and material permittivity measurement.

  微波技术广泛用于无线通信、材料处理和材料介电常数测量等领域。

• microwave techniques are nowadays widely used throughout wireless communication, material processing and material permittivity measuring.

  微波技术广泛用于无线通信、材料处理和材料介电常数测量等领域。

• in this paper the simplified equations for computing the complex permittivity is gained by detailed analyses of the resonant-cavity perturbational theory.

  本文较详细地分析了谐振腔微扰法，并由谐振腔微扰理论出发，得到介质复介电常数计算式。

• the experimental results show that the parameters, such as the permittivity and the size of the loaded dielectric block, have significant influences on the antenna minimization.

  实验结果显示，加载介质的介电常数和介质块的大小等参数，对天线的小型化有重要影响。

• this means the permittivity of oil is greater that of air.

  这就意味着油的介电系数大于空气的介电系数。

• the space-wave method, suitable for extended surface targets, is a preferable method for permittivity measurement of ground materials at microwave frequencies.

  空间波法适合于测量大面积目标的介电常数，所以是测量地物微波介电特性的一种较好的方法。

• a coaxial transmission and reflection method can be used to measure microwave permittivity of high-loss material.

  同轴传输反射方法可以用来测量高损耗材料的微波介电常数。

• the effects about potential distribution by time-harmonic character and permittivity a.

  最后讨论了时谐性和电容率对电位分布的影响。

• by using fixing resonator length, the complex permittivity calculate formulas are induced.

  采用固定腔长法，推导了计算复介电常数的计算公式。

• based on the model of granular media, the calculating method of permittivity and permeability for compound ferrite absorption materials is studied.

  基于颗粒混合媒质的模型，本文讨论了复合铁氧体吸波材料介电常数和磁导率的计算方法。

• malignant tissues have higher permittivity and conductivity and therefore appear differently than normal ones to a screen.

  恶性组织有较高的透电率和传导率，因此在屏幕与正常组织比表现不同。

• negative refractive material is an important and new-style artificial and composite material, in which permittivity and permeability are simultaneously negative.

  负折射率材料是一种重要的新型人工合成材料，其主要特征是介电常数和磁导率都小于零。

• negative refractive index materials are artificial materials with permittivity and permeability both negative within certain microwave frequency band.

  负折射率媒质是一种人造媒质，在某一微波波段内其介电常数和磁导率同时为负值。

• this paper mainly studies the microwave permittivity measurement techniques of dielectric materials.

  本文主要研究了微波介质材料介电常数的测试方法。

• based on the model, retrieves the relative permittivity and relative permeability of the coating- material by iterative inversion of a neural network from the measured antenna temperature.

  在此模型的基础上，用神经网络迭代法从测得的天线温度反演了隐身涂层材料的的相对介电常数、相对磁导率。

• e the elementary charge raised to the fourth power divided by eight times the square of the permittivity of vacuum times the square of the planck constant times z squared over n squared.

  等于负的电子质量，e，is，equal，to，minus，mass，of，the，electron，times,乘以元电荷的四次方,除以8，除以真空介电常数的平方,除以普朗克常数的平方,乘以z除以n的平方。

• in this paper, an improved open-ended coaxial-line probe is designed, which is suitable for measuring permittivity of erosion solutions.

  本文设计了几种新型开口同轴探头，使其适用于测量腐蚀性化学反应溶液的介电常数；

• then the influences of dumbbell shape and the material permittivity on frequency characteristics are discussed.

  然后讨论了哑铃的形状、大小、间隙以及介质介电常数对其频率特性的影响。

• the thesis presents the measurement principle and its disturbance factors, as well as the method to obtain the complex permittivity of pressboard with a lumped circuit model.

  论文详尽介绍了介电测量技术的原理及影响因素，并提出了利用集总电路模型求被测绝缘纸板的复介电常数的方法。