There is many kind in the method strengthened in bridge, such as increasing the sectional law, increasing the law of prestressing force , outside to stick to the law of stencil plate etc.
桥梁加固的方法有多种，如增大截面法、增加预应力法、外贴钢板法等。
Suddenly I just want to change a green stencil-plate instead of the former, so through my great effort, now you can see a different one.
突然想换一种绿色背景的模版，弄了一起就把这个给弄上来了。
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