The city is square, the fence is 12 meters or so high, build by laying bricks or stones of outside and total brick, build on the wall have crenel, there is moat outside the wall.

为方形,高12米左右,外表全部砖砌,上有口,外有河。

Low is called the bench table, highly with city wall difference not many, but outside the prominent wall, all around has the crenel, is place which the patrol stands sentry.

低的叫台，高度与 相差不多但突出外，四周有口，是巡逻放哨的地方。