短語詞組短語height drainage drilling hole 高抽鑽孔drainage e hole 放泄孔Continuous sewage drainage pipe hole 連續(xù)排汙琯口upward drainage hole 仰孔stopping the drainage hole 封孔exit flowing drainage hole 逸流型排水孔overflowing drainage hole 溢流型排水孔drainage of explosive hole 砲孔排水escape flow drainage hole 逸流型排水孔 返回 drainage hole