Noun:

1. a hole (usually with a flush cover) through which a person can gain access to an underground structure

manhoodn.成年；勇气；男子气概Manhattann.曼哈顿区（美国纽约市区名）；曼哈顿(岛)n.曼哈顿鸡尾酒manholesn.人孔（manhole的复数）；检修孔manhole lid检查井盖manhole dog人孔扣夹,人孔盖压板manhole step人孔踏步manhole head检查井盖manhole gate人孔门manhole seal检查井封口manhole size人孔尺寸manhole ring人孔加强圈manhole yoke[机] 人孔栓

junction manhole接头入孔,管路交汇处检查井,管路交汇处人孔

sewer manhole下水道检查井, 下水道检查孔

street manhole街道人孔

manhole door人孔门

manhole cover探井盖,升降口盖

deep manhole深人孔

manhole ring人孔加强圈

manhole plate人孔盖,检查孔盖,人孔盖板

manhole dog人孔扣夹,人孔盖压板

flushing manhole冲洗人孔

drop manhole跌水窨井

tank manhole油罐人孔

raised manhole凸起人孔

manhole ladder油罐内梯

inspection manhole检修人孔,检查人孔

dome manhole圆顶人孔

sunken manhole平盖人孔