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。
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。
3·The precise thickness at which the fibre traps the light depends on the wavelength of that light.
纤维捕捉光束的确切厚度取决于那条光束的波长。
4·The precise thickness at which the fibre traps the light depends on the wavelength of that light.
纤维捕捉光束的确切厚度取决于那条光束的波长。
5·If the distance between the wall and the dam was large in comparison to the wavelength, then what happens?
如果墙和坝之间的距离比波长大，那么会导致什么？