Summations are almost invariably indicated ellipses instead of the more prevalent sigma notation.在表示“连加”的式子中,几乎一成不变地使用省略号来代替更为流行的“∑”符号.Defines arcs and ellipses and identifies the classes needed to draw them.定义弧形和椭圆并确定绘制...
The lines of his fastidious face showed a vague disquietude.那过分讲究的面孔上的表情是一种隐隐的不安.The disquietude of his air, the somewhat apprehensive impatience of his manner, surprised me.他神情不安, 急躁的举止中有点担忧, 这使我吃了一惊....
...a semi-circular mosaic, its startling colours still fresh.令人惊叹的颜色依旧鲜艳的半圆形镶嵌画The juxtaposition of these two remarks was startling.这两句话连在一起使人听了震惊.One of the most startling proposals for amelioration, in fact, came from ...
Figure 4 - 2 shows a present - day laboratory version of the electroscope.图4 - 2就是目前实验室里的验电器样式.The leaves of the electroscope slowly diverge.验电器的叶片慢慢张开.Figure 4 - 2 a present - day laboratory version of the electroscope....
The Pheretima aspergillum ( E. Perrier ), also customly named Guang earth - worm , belongs to the family of Megascolecidae.参环毛蚓Pheretimaaspergillum ( E. Perrier ) 为钜蚓科 Megascolecidae 环毛属Pheretima动物....