1、 If this distance is large in comparison to the wavelength,this dam simply casts a shadow.
如果这个距离比波长大,那么这个水坝就会投下阴影。
来源:秒词邦搜集整理
2、 We want to divide all of this by our wavelength, and to keep our units the same we'll do meters.
我们想用波长除以所有这些,而且为了保持单位统一我们采用米为单位。
来源:秒词邦搜集整理