穿透系数 meaning in English

penetrating coefficient
penetration coefficient

Transmittal coefficient of toothed barrier in superlattice
势垒的穿透系数
Thermal bridges in building construction - linear thermal transmittance - simplified methods and default values iso 14683 : 1999 ; german version en iso 14683 : 1999
建筑物热桥.线性热穿透系数.简化方法和缺陷值
The photon spectrum data that are used in the calculation for translating the absorbed dose to the photon fluence have been obtained by the experimental method with a 12mv pulse accelerator and the iterative least - squares data analysis technique
为此，利用穿透系数数值分析的叠代最小二乘法对12mv脉冲加速器的轫致辐射谱进行了实验测定，并在同样的几何条件下，用m - c方法对其进行了计算。