九宫三路是什么意思

简介：Third, although our army has shield chariots for siege, I believe that the shield chariots are not well-defended and are not suitable for digging holes under the city. I once knew a craftsman in my early years and knew a little about shield chariots. I am willing to lead people to stay overnight. Improve the shield vehicle to ensure the safety of the excavation soldiers. In this way, we can complete the excavation with twice the result with half the effort!