1. The impact and toughness of unmodified cured epoxy resins are poor, which restrict its applications. 未改性环氧树脂固化物存在质脆、冲击性能差等缺点，限制了它的应用。
2. Above, in order, a pic of what my mirror usually looks like, and the original, unmodified version of the ghost pic. 最重要的，以便事先知情同意的是我的一面镜子通常看起来，和原始，未修改版鬼峰。
3. Indicates the symbol on this layer is indifferent from the previous frame. You have the option to hide these unmodified layers. 表示表示层的符号相比较前一个框架是无关紧要的。可以属性设置隐藏这些未更改的层。
