The quality of the second nonlinear optical effect in the film was affected by several factors such as the difference between phases, the ratio of intensities of light beams, the rati...是什么意思_The quality of the second nonlinear optical effect in the film was affected by several factors such as the difference between phases, the ratio of intensities of light beams, the rati...在线翻译_英语_读音_用法_例句