例句與造句

1. The conversion efficiency formula of the flat wave for second - harmonic generation was deduced in detail . and that of the gaussian wave for second - harmonic generation also was given in the small signal deliver
   詳細(xì)推導(dǎo)了平面二次諧波的倍頻轉(zhuǎn)換效率公式，介紹了小信號(hào)近似下高斯光束的倍頻轉(zhuǎn)換效率公式。
2. It's difficult to find flat wave in a sentence. 用flat wave造句挺難的