短語(yǔ)詞組短語(yǔ)propagation E factor 傳播因數(shù)Beam Propagation Factor 傳輸因子field pattern -propagation factor 場(chǎng)方向性相對(duì)因數(shù);辰向性相對(duì)因數(shù)beam propagation factor m -factor 光束傳輸因子factor of propagation 傳播系數(shù) 返回 propagation factor