福克斯词典 \

英汉例句

\ manholes的例句（manholes在句子中的用法）

manholes的例句（manholes在句子中的用法）

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.

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