Transmittivity
(非散射介质单位厚度的)透射率, 透射系数
🗣️ 情景例句
about the possibilities.
有多大的可能性。
There is no friend so faithful as a good book.
最忠实的朋友莫过于一本好书。
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向图书馆借阅科技书籍时感到很困难，