Permeability is measured by constant pressure air source blowing, core of the detector is micro differential pressure sensor.
透气性测定通过恒压气源吹气测压法实现，透气性探头的核心部件是微压差传感器。
In the present study, equations for determining the permeability constant of microcapsules were suggested by theoretical analysis and verified by experimental results.
本文导出了测定微型胶囊渗透性常数的公式，实验结果与理论分析有较好的一致性。
This system can implement constant-head, constant flow-rate and transient-pulse permeability tests of specimen under high confining and pore pressures.
该装置可在高围压及高孔隙水压力条件下采用定水位法、定流量法或压力脉冲法测试岩石的渗透系数。
Dielectric constant is 50 ~ 250. Permeability is 50 ~ 1100. It is suitable to burying miniaturization passive component in low cost.
介质常数为50 ~ 250，导磁率为50 ~ 100以上，适用于低成本的埋入微型无源元件。
The electromagnetic loss property was studied by the relative dielectric constant and relative magnetic permeability of the ferrites.
并测试样品的相对介电常数和相对磁导率，研究了它们的电磁损耗特性。
The electromagnetic loss property was studied by the relative dielectric constant and relative magnetic permeability of the above three ferrites.
经测试样品的相对介电常数和相对磁导率后，研究了它们的电磁损耗特性。
It also showed that the complex dielectric constant and complex permeability decrease as the measuring frequency increasing, and maximum dielectric loss was 0.30, but magnetic loss is small.
其介电常数、磁导率基本都随测试频率的增加而下降；介电损耗值最大可达到0.30，磁损耗值较小。
The notable effect of temperature on permeability measure of liquid in rubber and the necessity of keeping the test ambient temperature constant were proved by the theory analysis and typical tests.
通过理论分析和典型试验，证明了温度对液体在橡胶中透过性测量的显著影响和保持试验环境温度恒定的必要性。
This transparency aims primarily the visual and mental permeability designed to maintain constant relationship between the public and the magic green rectangle of the grasscourt or the athletic track.
透明度的设计主要是以视觉渗透性和心理渗透性为目标，维持公众与充满魔力的草地球场或运动场跑道之间的稳固关系。
It is proposed that constant filtration rate can be used to evaluate the permeability of filter cakes.
实验研究了滤饼渗透率的变化规律及测定方法，认为用恒定滤失速率表示滤饼渗透性是较好的方法。
And we can produce the multi-functional showcase, such as high permeability glass, UV-proof, constant temperature, security, bullet-proof, moistureproof and so on, according to the customers' needs.
并可根据需要制作高透玻璃、防紫外线、恒温、防盗、防弹、防潮等多功能的展柜。
Based on the classical electromagnetic theory of Maxwell, the expression of the relative dielectric constant and relative magnetic permeability is deduced also;
同时从经典麦克斯韦电磁场理论出发，推导出复相对介电系数和复相对导磁率的表达式；
Based on the classical electromagnetic theory of Maxwell, the expression of the relative dielectric constant and relative magnetic permeability is deduced also;
同时从经典麦克斯韦电磁场理论出发，推导出复相对介电系数和复相对导磁率的表达式；
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