upright joint的意思|示意

Expo Network on May 15 news: more than 10,000 pieces of steel erected by the African Joint Pavilion at the Expo in the region have been stand upright.

世博网5月15日消息：由1万多件钢结构搭起的非洲联合馆已挺立在世博园区内。

They made joints in stone keeping the lintels in place horizontally using a tongue and groove joint and subsequently fixing the upright and lintel with a ball and socket joint or mortice and tenon.

石匠们用楔口连接法将楣石水平放置，将石块连接起来，然后将这些直立的石块和楣石用球窝接头或楔口接头来固定。

Secondly, Chinese athletes comply with walking race definition in that the knee joint is unwound from touchdown to upright phases.

我国优秀竞走运动员着地瞬时至垂直瞬时膝关节是伸直的，符合竞走的定义；