管道人孔 meaning in English
conduit box
line manhole
pipe manhole
Examples
- Standard specification for joints for concrete pipe , manholes , and precast box sections using preformed flexible joint sealants
使用预制挠性接缝密封胶的混凝土管道人孔和预制箱形件的接缝的标准规范 - Standard specification for joints for concrete pipe , manholes , and precast box sections using preformed flexible joint sealants metric
使用预制挠性接缝密封胶的混凝土管道人孔和预制箱形件的接缝的标准规范