查询词典 permeability

Based on the Maxwell Equation, theoretical formula of microwave permeability and permittivity of polycrystalline iron fibers are introduced.

基于麦克斯韦方程，给出了多晶铁纤维的微波磁导率和介电常数的理论公式。

The complex permittivity and the complex permeability were investigated in the frequency range of 2~16GHz.

它的环境稳定性好，易于合成，在微波屏蔽和吸收方面具有一定的优势[1]。

The complex relative permittivity and permeability of the absorber were measured in a frequency range of 2 to 18GHz.

HP8722ES矢量网络分析仪测量了样品在2~18GHz频率范围内的复介电常数和复磁导率。

The influence of permittivity and permeability is also discussed.

给出了二维横各向异性介质FDTD递推式。

Product Category screen has tempered glass safety, AG anti-reflective glass, antireflection AR glass, mirror glass screen, the perspective of visual glass, back to the box-shaped glass, ITO glass, solar glass and the high permeability of various electrical appliances, such as supporting glass .

产品种类有视屏安全钢化玻璃、抗反射AG玻璃、减反射AR玻璃、镜面视屏玻璃、角度可视玻璃、回形框玻璃、ITO玻璃、高透太阳能玻璃及各种电器的配套玻璃等。

In this paper, the effect of aggregate gradation to the strength and permeability of pervious concrete has been discussed.

单一级配集料在制备无砂透水混凝土时，最大的缺陷在于其强度不高，限制了其大面积的应用。

Permeability of ordinary concrete is determined by pervious test and electricity method in this paper, and the relativity of the results of the two methods is researched.

在高性能混凝土的渗透性和耐久性研究中，利用电化学理论对其进行快速评定是目前较常用的一种方法，而传统的透水试验方法则难以实施。

On the basis of laboratory and in situ tests,we analyse the depth and perviousness of vadose zone as well as aquifer and aquifuge and, furthermore,point out Penglaizhen formation with poor permeability can effectively prevent pollution of ground water from the leachate of refuse.

结合室内和野外现场试验，详细分析填埋场区的包气带、含水层、相对隔水层的厚度、透水性等水文地质条件，指出被透水性差的蓬莱镇组中段地层所围限的三面环山、中间沟谷的地质环境，能够有效地阻滞垃圾渗滤液对地下水的污染。

New study found that phosphocreatine cound penetrate through cell membrane to protect mitochondrion by inhibiting permeability transition pore opening and reduce cell apoptosis.

新的研究发现，磷酸肌酸还可以透过细胞膜抑制膜通透改变孔道的开放保护线粒体，减少细胞凋亡。

The microstructure of the scaffold was observed under photomicroscope and scanning electron microscopy,and the in vitro degradation time,permeability,tensile-strength,porosity,shrinka...

实验结果显示：支架中的成纤维细胞、脂肪细胞及组织纤维间质完全去除，胶原纤维得到了松散，并维持其原有的天然三维网络多孔结构；该材料透水汽性处于3000g.m-2.d-1左右，适合创面恢复；体外降解时间处于25～50h之间，并可根据需要调整工艺条件控制降解时间；拉伸强度介于10.20～11.50MPa之间，具有良好的拉伸强度；收缩温度介于70～85℃之间。上述结果表明该材料已解决了猪脱细胞真皮基质渗透性差、降解速度过慢的缺点，并且其透气性和拉伸强度高、降解性优良且可控，符合组织工程支架材料的要求。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。