介电常数

The small concrete blocks and big concrete plate were constructed for the experiment. The dielectric constant and the attenuation index obtained by the first 1 and 1/2 waveforms reflected from the concrete surface are used as the parameters.

研究使用1GHz天线，经由实验分析采用抬高天线与受测物距30cm方式检测混凝土，将测得混凝土反射波形计算出介电常数，并选择反射脉冲波形1又1/2振幅面积来做为量测标的，将火害前后振幅面积计算求得衰减常数，比较火害前后混凝土之差异性。

Besides, A new method based on the AES depth profile and line shape analysis was developed in this thesis.

增加Pt层后，PZT薄膜的介电常数高达620，与体相PZT的介电性能相近（590）。

The prepared plumbic strontium titanate is the ferroconductive film with component gradient, the dielectric constant and saturation polarization of which is improved.

所制备的钛酸锶铅是具有成份梯度的铁电薄膜，其介电常数和饱和极化强度与一般铁电薄膜相比都得到了很大提高。

The triboelectrostatic beneficiation experiments have been done based on the research of floatability, dielectric constant and mineral components.

在对3种煤的浮沉性能、介电常数、矿物成分研究的基础上，进行了摩擦电选实验研究，应用摩擦电选技术结合喷煤系统的特点，进行炉前降灰具有工艺和技术的合理性，降低高炉喷吹用煤的灰分有利于提高煤比、降低焦比及生铁成本。

As a windfall of such analysis , It points out that physical constant of permittivity in vacuum actually is an constant without physical dimension .

给出了常见的50余个物理单位和物理量的时空组态和时空结构。作为一个分析结果发现，真空介电常数实际上是一个无量纲的物理常数。

In the frequency domain, the transmission ratios of electromagnetic Gaussian pulses are computed and we analyzed the effect on defect mode properties of unmagnetized photonic crystals produced by its periodic constant, parameters of plasma and parameters of the defect layer, such as its dielectric coefficient, length and position.

从频域角度分析得到微分高斯脉冲的透射率，并讨论该光子晶体的缺陷层介电常数、厚度、位置、光子晶体的周期常数和等离子体参数对其缺陷模的影响。

We thus obtain 49 velo- city constants as summarized in the following table.

在每个温度里，反应速度常数随溶剂介电常数的减小而略为下降：温度愈高，下降趋势愈为显著。

This invention relates to a circular small UHF antenna with high dielectric constant and its processing method, among which, the UHF antenna characterizes that 1,it is composed of a radiation plate, a feed point and a medium chip, 2, the radiation plate is closely adhered to the top surface of the medium chip, the bottom surface is the metal ground face, the chip and the radiation plate is rectangle or square, 3, the feed point is at the 1/3 place of the diagonal line of the rectangular or square radiation plate apart from the top point.

本发明涉及一种高介电常数圆极化小型超高频天线及其制作方法。UHF天线特征在于(1)所述的超高频天线是由辐射贴片、馈电点和介质基片组成；(2)辐射贴片紧贴在介质基片的上表面，介质基片的下表面为金属接地面；介质基片和辐射贴片呈矩形或正方形；(3)馈电点位于矩形或正方形的辐射贴片的对角线离顶点的1/3处。其制作方法是采用ε≥38高均匀性陶瓷基片，再结合丝网印刷技术完成厚膜焙银后形成辐射贴片，然后再圆极化。具有制作工艺成熟、体积小及使用灵活等特点。

The prominent properties of NCW is its high ionization constant and low dielectric constant as compared as the normal water,so that NCW has the characteristics of own acid-base catalytic function and the ability of dissolving organic and inorganic compounds.

近临界水与常温常压水相比突出的性能是电离常数大和介电常数小，因而近临界水具备自身酸碱催化功能和溶解有机物和无机物的特性。

The outstanding properties of near-critical water comparing to that of water at ambient temperature and pressure are its high ionization constant and low dielectric constant,so it possesses self-acid/base catalysis function and special solubility of organics and inorganics.

近临界水与常温常压水相比其突出的性能是电离常数大和介电常数小，因而近临界水自身具各酸碱催化功能和能同时溶解有机物和无机物的特性。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。