Els
[化] 電泳光散射; 電子能量損失能譜; 電子能量損失能譜學
??? 情景例句
I condemn fascism and all it stands for.
我譴責法西斯主義及其代表的一切。
The goods were carefully packed and shipped here in excellent condition.
貨物包裝得很仔細，裝船很小心，在這兒完好無損。
But here we come up against the most difficult of all obstacles to contact with people on other planets ----the astronomical distances which separate us.
然而，在和外星人聯系中我們遇到的最大困難是分隔我們的天文距離。