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。
Through the laboratory test, with strength, permeability and resistance to characterize the hydrolysis of materials.
通过室内试验，用强度，渗透性和抗水解性来表征该材料的效果。
However, the main structure of plastic flexible packaging materials are plastic polymers, has some permeability to gas, and therefore can not fully replace the metal and glass packaging.
然而塑料软包装材料主体结构是塑料聚合物，对气体有一定的渗透性，因此并不能完全代替金属、玻璃包装。
A measuring method for pulse permeability was briefly introduced in this paper. Pulse permeability of some magnetic materials was measured under different conditions, and the results were given.
本文简要介绍了脉冲磁导率测量方法。在不同条件下测量了某些材料的脉冲磁导率，并给出了测量结果。
The optical microscope and SEM were employed to analyze the damage of glass fiber during weaving and resin permeability in the course of molding of composite materials.
同时采用光学显微镜和SEM分别对织造中玻纤断裂情况和树脂在复合材料成型过程中的渗透性进行了研究。
The relation between pore structure and permeability of nonwoven filtration materials was described.
研究了非织造过滤材料的孔隙结构与透气性之间的关系。
The permeability, solubility and diffusivity of tritium through metals, ceramics, glasses, elastomers and polymeric materials were studied.
研究了氚在金属材料、陶瓷材料、玻璃、弹性材料和聚合材料中的溶解度系数、扩散系数和渗透率；
The high expandability and low permeability of these materials led to the modification of the available experimental techniques and to the design of new equipment.
由于膨润土具有较高的膨胀性以及低渗透性，因而必须对传统的试验技术进行改进，并设计出新的试验设备。
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。
Some materials with good air permeability such as kraft papers and bast papers are suitable for packing and storage.
切忌使用塑料袋密封，可用牛皮纸、皮纸等通透性较好的包装材料进行包装储存。
The air permeability of leather and other shoe materials has the bi -differential property.
皮革及其它鞋用材料的透气性存在两向差异。
Materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having an oriented permeable zone. determination of air permeability.
作卷烟纸用的材料，过滤纸和过滤嘴接缝纸材料，包括定向可透气部分用的材料。透气性的测定。
The effects of the perovskite-type compositions, the additive of other metal ions and the sintering temperature of the membranes on the oxygen permeability of the materials were investigated.
探讨了钙钛矿基体氧化物、离子掺杂以及膜片烧结温度等对材料透氧性能的影响，并考察了膜催化反应器内的甲烷部分氧化反应情况。
Plastic concrete is an ideal cutoff wall material for its excellent mechanics, deformation properties and permeability, which can be overcome lack of ordinary concrete cut-off wall materials.
塑性混凝土是一种理想的防渗墙材料，以其优越的力学、变形和渗透性能可以克服普通混凝土防渗墙材料性能的不足。
Play wind, rain, cold, warmth and good permeability characteristics of the material commonly known as breathing, is the mainstream of the twenty-first century materials.
起到防风，防雨，抗寒，保暖透气性好等特点，一般称为会呼吸的面料，是二十一世纪材料之主流。
Shoe flour new materials with high frequency in the foot support ring provide excellent fit and the seamless fitting shoes structure and permeability, and durable.
真皮鞋面配高频新材料配以中足支撑环提供出色的合脚性，无缝鞋头结构合脚且透气性好，经久耐穿。
The coefficient of permeability of natural intermediate soils on the northern bank of the Yangtze river delta is successfully predicted by porous materials models.
基于长江河口地区沉积物的特点，分析了该区域天然沉积土的渗透性能，得出渗透系数显著偏低的结论。
High Pressure Densometers are the accepted standard for measuring the porosity, air-permeability or air-resistance of materials having low permeability.
高压透气度测试仪经检验合格产品，用于测量低透水性材料的孔隙度、透气度和气阻。
The measures to improve the anti permeability in construction have been put forward from the perspectives of design, construction, raw materials, fine structure, application and maintenance.
从设计、施工、原材料、细部构造、使用维护等方面提出提高防水砼抗渗性能的措施。
In this paper, experiment of cell membrane permeability in college teaching materials of was improved.
对高等学校教材中“细胞膜的渗透性”这一实验作了进一步改进。
With the calculation and measuring experiment methods, the effect of vacuum chamber materials magnetic permeability on field distribution in a dipole magnet is discussed.
通过计算机模拟计算与实验相结合，讨论了真空盒磁导率对二极磁铁磁场分布的影响。
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。
Gasification materials of powder is overmuch, material layer resistance increases, permeability worse.
气化原料中粉末过多，料层阻力增大，透气性变坏。
The mental health education materials through the permeability should be closely linked with the usual practice of education, classroom teaching to "infiltration" of mental health education;
心理健康教育渗透应该紧扣教材贯穿与平时的教育实践，课堂教学要“渗透” 心理健康教育；
Analysis is the influential factor of the moisture permeability of envelop materials, and put forwards the ideas of how to design envelop materials.
对封套材料透湿率影响因素进行了分析，提出了设计封套材料的见解。
Objective To study the air permeability, anti-humidity and antibacterial index of the operating coats made of different materials.
目的研究不同材料手术衣抗湿度、透气度和抗菌性能。方法选用纯棉布类双层手术衣和无纺纸质一次性手术衣。
PET needle punching materials have good air permeability with the porosity of more than 90%.
PET针刺材料的透气性较好，孔隙率一般都在90%以上，符合多孔材料的结构特征。
So far, fractal geometry has been widely applied to study the porosity, permeability and percolation properties of the rock and soil, and other materials.
目前分形几何已被广泛应用来研究岩土的孔隙率，输运特性和渗透性等等。
So far, fractal geometry has been widely applied to study the porosity, permeability and percolation properties of the rock and soil, and other materials.
目前分形几何已被广泛应用来研究岩土的孔隙率，输运特性和渗透性等等。
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