管孔 meaning in English
pipe orifice
pore
rodding eye
tube orifice
tube seat
Examples
- Specification for welding tube holes of industrial boilers
工业锅炉焊接管孔 - Hymenanthesoides : growth rings boundaries distinct
单管孔：导管散生。 - Laboratory glassware ; v - bore stopcocks
玻璃实验玻璃器具. v形管孔软木堵塞 - Aerospace series - pipe coupling 37 . design configuration - inch series - port connections
航空航天系列.管连接件37度.设计造型.英制.管孔连接件 - This article introduced the design principle and characteristic , also appended irregular pipe roller design diagram
介绍了该法的设计原理和特点，并附有异型管孔型设计图。