angle of spread
... 指向天线:directional antenna 指向角;半扩散角:angle of spread 指向标,灯标,灯塔,信号台,警告;信号所,信号站;信标:beacon ...
half-angleofspread
... half-angleofspread半扩散角 half-angularbreadth半角宽度 half-arc半弧光灯 ...
angle of read
... 火焰扩散角 flame spread angle 半扩散角 angle of spread ; half-angleofspread ; angle of read 锥角扩散角 cone angle ...