It only deals with the abstract concepts of nodes and edges.

编码只处理节点和边的抽象概念。

youdao

When I sum all of the little line integrals together, all of the inner things cancel out, and the only ones that I go through only once are those that are at the outer most edges.

当将所有线积分加在一起时，所有内部的线积分都抵消了，只剩下仅需要一次计算的，就是外围边缘部分。

youdao

We stop noticing what's going on around the edges and only see what's right in front of us.

我们不再注意周边发生的东西，只是看到眼前的。

youdao

Sure enough, the bullish story has started to unravel, if only at the edges.

ECONOMIST: Buttonwood

Living inside their Beltway Bubble, they are convinced that the 2002 business regulatory act Sarbanes-Oxley is a success story, requiring only tweaking around the edges.

FORBES: Beltway Bureaucrats Bad For Business

Wales is to get a 60-seat assembly capable only of tinkering at the edges with what has been decided at Westminster.

ECONOMIST: Launching devolution