例句與造句

1. The fresnel and franhufer diffraction patterns , of regular shapes screen such as slits , rectangular apertures , circle apertures , discs , triangle apertures , ronchi gratings , and some irregular shapes screen , are observed in the different propagation distance . this clearly gives the relation and difference of the two diffraction patterns
   具體分析了規(guī)則形狀如單縫、矩孔、圓孔、圓盤(pán)、三角孔、黑白光柵及一些不規(guī)則形狀等孔徑的菲涅耳衍射和夫瑯禾費(fèi)衍射圖樣強(qiáng)度分布，為深入理解菲涅耳衍射和夫瑯禾費(fèi)衍射及其內(nèi)在聯(lián)系與區(qū)別提供了理論依據(jù)。
2. It's difficult to find rectangular aperture in a sentence. 用rectangular aperture造句挺難的