1. At the plastic limit or breakpoint of violent disturbance, breakdown of the vegetation system takes place completely and thus artificial reafforestation is needed.
剧烈干扰的应力在塑性极限或断裂点以上，系统完全崩溃，需要通过人力重新建造。
来自互联网
2. At the plastic limit or breakpoint of violent disturbance, breakdown of the vegetation system takes place completely and thus artificial reafforestation is needed.
