manholes是什么意思？

manholes

人孔（manhole的复数）；[建] 检修孔

例句

• Interior surfaces of manholes and its covers should level with that of the container. 人孔及人孔盖的内表面与容器的内表面平齐.
• Air investigations are absolutely necessary before entering any manholes. 空气调查是绝对必要的,方可进入任何沙井.
• This welding backing is specially designed for hand holes and manholes welding. 本衬垫适用于入孔,出孔的焊接使用.

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  (位于街面，盖有金属盖，供工人检修、疏浚下水道时出入的)出入孔，检修孔，人孔
  A manhole is a large hole in a road or path, covered by a metal plate that can be removed. Workers climb down through manholes when they want to examine or clean the drains.