The King's chamber is found at the heart on the pyramid, only obtainable through the Good Gallery and an ascending corridor.passageway通道;cavity洞，凹处;cylinder汽缸;orifice孔口;hall门厅，走�?cylindrical圆柱形反滤�?在排水设施之间，沿渗流方向将砂、石料按颗粒粒度或孔隙率逐渐增大的顺序分层铺