起加强作用 meaning in English

synergize

The obtained results indicate that compared with the clay layer , the liquefied sand layer takes a decreasing effects on the short period component of the surface ground motion and the effects increase with increasing of the thickness 、 depth and width of the liquefied sand layer ; the liquefied sand layer takes a increasing effects on the long period component of the surface ground motion but the effect is not obviously ; to the input earthquake wave , the demarcation point of strengthens and weaken is about 0 . 6s
主要结论为:和同样的粘土层相比,液化层的存在对地表上地震动的短周期分量主要起减弱作用,且减震效果随着液化层埋深、厚度的增加而变强;对长周期分量主要起加强作用,但是效果不太明显;对所输入的地震波来说加强减弱的分界点所对应周期为0 . 6s左右。