Please move the manhole cover away .请将人孔盖移开。How about that manhole In the courtyard. You been down there?那么广场下面的通道呢? 你下去过 吗 ?Stainless steel bolts and nuts shall be tightened on manhole covers.人孔盖使用不锈钢螺栓和螺母拧紧....

n.人孔，检修孔，探孔，入孔，进人孔...

Please move the manhole cover away .请将人孔盖移开。Stainless steel bolts and nuts shall be tightened on manhole covers.人孔盖使用不锈钢螺栓和螺母拧紧.Debus turn head in the manhole 2 to have equipments smoothly entered.在人井2中,将弯头卸下,便于设备进入.How ...

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.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.Interior surfaces of manholes a...

manhole的复数形式为：manholes...

manhole的音标：manhole的英式发音音标为：['mænhəʊl]manhole的美式发音音标为：['mænhoʊl]...