例句與造句

1. Numerical aperture of step - index multimode optical fibers by output far - field radiation pattern measurement
   用輸出遠(yuǎn)場輻射圖測量確定步長指數(shù)多模光纖的數(shù)值孔徑
2. It's difficult to find step-index multimode optical fiber in a sentence. 用step-index multimode optical fiber造句挺難的