平均截面 meaning in English
average cro section
average cross section
Examples
- With the increase of variance , the difference in h - polarized or v - polarized incident wave and in the different mean cross sections is becoming gradually small until when the variance is infinity namely the rotatory axes of the group are uniformly oriented : at this time the different mean cross sections are independent of the polarized status of incident wave
随着方差的增大，入射波水平偏振和垂直偏振时的各平均截面的差异逐渐减小，减小到直至方差为无穷大时，即与粒子群取向的均匀分布的情况相同，此时各平均截面与入射波的偏振状态无关。 - It is also found by comparing with different mean cross sections that there is similar variability for the mean attenuation and scattering cross sections as a function of the different variance , expectation and the wave lengths , but there is much difference for the mean scattering and back scattering cross sections especially when the rotatory axes are oriented randomly in normal distribution in oxy plane or oyz plane and 3d space
还对比各种平均截面可知：对于平均衰减截面、平均散射截面两者随方差、期望及波长有着相似的变化规律；但平均散射截面、平均后向散射截面之间，有着很多的不相同，特别在旋转轴在oxy平面、 oyz平面内和在空间oxyz内随机正态取向时的情形。