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try pressing the f12 key on your keyboard and disabling proxy servers, unless you know that you are required to use a proxy to connect to the internet. reload the page.
除非您确定您需要使用代理服务器才能连接到 internet,否则请按键盘上的 f12 键,然后禁用代理服务器。重新载入页面。
click to measure (f12) left mouse: \tselect up to three atoms. \tdistances are measured between 1-2 and 2-3 \tangle is measured between 1-3 using 2 as the common point right mouse: reset the measurements.
点击以测量( f12) 鼠标左键 :\ t 选定三个原子 。\ t 1- 2 和2- 3 的距离将被测量\ t 2作为顶点, 1- 3之间的角度将被测量 鼠标右键: 重新开始测量 。