n.城或墻頂之垛口；槍眼；炮門

The Mutian Valley Great Wall's construction has the unique style, here watch tower is crowded, the mountain pass is important, the city both sides have the crenel. 慕田峪長城的構(gòu)筑有著獨(dú)特的風(fēng)格，這里敵樓密集，關(guān)隘險(xiǎn)要，城兩側(cè)均有垛口。

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. 城為方形,墻高12米左右,外表全部磚砌,墻上筑有垛口,墻外有護(hù)城河。

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. 低的叫墻臺(tái)，高度與城墻 相差不多但突出墻外，四周有垛口，是巡邏放哨的地方。

adj.鋸齒狀的