求翻译：最后，利用主导线路的输电介数实现了关键输电断面的重要性排序，克服了后验式自动搜索方法中需要定量分析安全稳定裕度的缺陷。是什么意思？

Finally, the use of leading lines in the number of transmission mediated key transmission section in order of importance, to overcome the experience automatic search method in the quantitative analysis of the security and stability margin defects.

Finally, the use of the lead line of transmission between the key transmission cross-section of the order of importance, to overcome the automatically after check-in search methods to quantify the security and stability margin.

Finally, the use led the line the electric transmission to lie between the number to realize essential electric transmission cross section important sorting, after overcame examined in the type automatic scan method to need the quantitative analysis safe stable allowance the flaw.

Finally, with the leading number of transmission line has achieved a key transmission section rank in terms of importance, overcame a posteriori type automatic searching method in quantitative analysis of needs security and stability margin deficiency.

正在翻译，请等待...