例句與造句

1. The physical meaning for each of the term in the coupling coefficient is stated . in particular , we advance firstly ( as far as our knowledge ) , that the birefringence can cause additional coupling for the directional coupler . then , taking the ti - diffused linbo3 directional coupler and the ti - diffused linbo3 with gradient refractive index for examples , we make the numerical simulation for the coupling coefficient or the propagation constant , which prove that the birefringence has played a crucial effect on the propagation constant and the coupling between the modes that we can not neglect
   第二，我們推導(dǎo)出了弱導(dǎo)近似下各向異性光波導(dǎo)在任意微擾下的非正交耦合模理論，得到了物理意義鮮明的耦合波方程和耦合系數(shù)表達式，指明了耦合系數(shù)所包含的四項各自的物理意義及在不同條件下的取舍，首次提出在方向耦合器中雙折射將引起附加的耦合，并以鈦擴散鈮酸鋰方向耦合器和折射率漸變分布的鈦擴散鈮酸鋰矩形波導(dǎo)為例對耦合系數(shù)進行了數(shù)值模擬，充分體現(xiàn)了雙折射項對傳播常數(shù)的影響。
2. It's difficult to find additional coupling in a sentence. 用additional coupling造句挺難的