But those victories did not solve other underlying problems .

但是那些胜利并不能解决其他潜在的问题。

What are the main underlying structural causes of this depression ?

什么是经济不景气的根本的结构性原因呢？

We might instead look at the underlying economics .

我们不妨从基本的经济原理着手。

Angular unconformities are ones in which the overlying and underlying rocks dip at different angles .

角度不整合面是那些趟在上面和压在下面的岩石沉浸于不同的角度。

But the underlying improvement is more impressive .

但是，潜在的改善令人惊叹。