使图形能够准确、全面地表达整个电网的信息。

So, the graphical system can express the whole power grid information exactly and completely.

youdao

通常，它们颜色鲜明，用图形表达；

They are often bright in colour and have picture on them.

youdao

通常，它们颜色鲜明，用图形表达；

They are often bright in colour and have picture on them.

youdao