hub and spigot造句

例句与造句

1. Standard test method for gaskets for use in connection with hub and spigot cast iron soil pipe and fittings for sanitary drain , waste , vent , and storm piping applications
   卫生排水废弃物通风和暴雨管设施用与衬套窝接式铸铁污水管和配件相连接用垫圈的标准试验方法
2. It's difficult to find hub and spigot in a sentence. 用hub and spigot造句挺难的