And then,the characteristics of the sound reflection and transmission of some customarily used composite multiple layer structures are studi.
采用传递矩阵方法,依据层界面上应力和振速的连续性,从理论上推导了2种典型的任意多层均匀材料复合结构的反射透射系数公式,研究了一些常用复合结构形式的声反射和透射特性。
Considering the compression of soil grain and pore fluid and viscid coupling of pore fluid and soil skeleton,reflection and transmission of incident P1 wave at the interface of saturated soil and building was studied by adopting amended Biot model.
考虑了土颗粒、孔隙流体的压缩性及孔隙流体与土骨架之间的粘性耦合作用,采用修改的Biot模型分析入射P1波在饱和土体和建筑基础界面的反射与透射,得到了反射系数与透射系数的一般计算式,并对反射系数、透射系数随入射角、频率的变化规律进行了数值模拟。
Maradudin (Amsterdam:Elsevier )ch7. REFLECTION AND TRANSMISSION MAGNETIC/NONMAGNETIC MULTILAYERS
磁性/非磁性多层膜的反射透射性质
Transmittance And Reflectance Meter
可视光透过率、反射率计
Reflection, refraction, Snell's law, critical angle, Brewster's angle, reflection and transmission coeffs.
2反射，折射，司涅尔定律，极限角，全反射角，反射与穿透的交互作用。
diffuse transmittance
漫射透光率,漫射透射比
Professional heat insulation piece, transmission ultraviolet ray, reflect infrared ray.
专业隔热片，透射紫外线反射红外线.
THE GENERALIZED REFLECTION-TRANSMISSION COEFFICIENT METHOD IN ACOUSTIC WELL LOGGING
声波测井中的广义反射、透射系数方法
Interference Filter of Reflectance in 650nm and Transmittance in 10.6μm;
650nm反射10.6μm透射的薄膜干涉滤光片
The Accurate Reflectance,Transmittance and Absorptance Measurements of Specular Samples;
精确测量镜面反射、透射和吸收系数
Making the calculation of generalized reflection-transmission coefficients dimensionless
广义反射-透射系数算法的无量纲化
Reflection and transmission at interface of uniaxial crystals
光在两单轴晶体间界面的反射和透射
The Reflection and Trans Mission in Two Mediums Demarcation When Sound Wave Vertical Incidence;
声波垂直入射在两种介质界面处的反射和透射
Transmission copy: Copy which is viewed by transmitted light, e,g.a transparency. As distict from "reflection copy" which is viewed by reflected light.
透射原稿:用透射光观看的原稿，例如透明片，幻灯片。有别于用反射光观看的反射原稿。
testing method on transmittance and reflectance for daylight and solar radiation and solar heat gain coefficient of flat glass
平板玻璃可见光透射比、反射比、太阳能总透射比试验方法
opaque projector
不透明体投影器;投射式放映机;投影仪;反射幻灯机;反射式放映机
Calibration: Only100% calibration is need while in transmittance mode, And record the original reflectance from the test chip when using the reflectance mode.
标定：在透射时只进行100%定，反射时是对比较片的反射比值标定。
Calibration: Only 100% calibration is need while in transmittance mode, And record the original reflectance from the test chip when using the reflectance mode.
标定：在透射时只进行100%标定，反射时是对比较片的反射比值标定。
System can be configured to be used in Transmittance Mode or Reflectance Mode.
系统可以配置为透射模式或者反射模式。
a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted.
穿过曲面透镜中心的光线不会反射和折射的线。