Hill climbing algorithms try to optimize an object, in this case the plugboard settings, by changing the object step by 梯度算法逐步对对象(在此情况下为线路连接板设置)进行改变，以此来优化对象。
The program iterates through all possible machine settings except the plugboard settings.程序重复通过所有可能的机器装置，当然配线板装置除外。
This is a major shortcut since the plugboard settings form a huge portion of the key space.这是一条重要的捷径，通过设置线路连接板的步线来生成大量的密钥空间。