例句與造句

1. During his Greifswald years Mie worked on the computation of scattering of an electromagnetic wave by a homogeneous dielectric sphere, which was published in 1908 under the title of  Contributions to the optics of turbid media, particularly of colloidal metal solutions in " Annalen der Physik ".
2. It's difficult to find colloidal metal in a sentence. 用colloidal metal造句挺難的