pivot joint

基本解释

The articulation of the radius and ulna in the arm is a pivot joint.
手臂桡骨和尺骨的连接关节是一个枢轴关节。
dict.cn
Large pivot joint metal blackboards double as partitioning doors to include or exclude the corridor spaces as desired.
金属制黑板和分割门围绕着一个巨大的轴旋转，可以根据使用者的需求来扩大或者分隔走廊空间。
The pivot joint (8) can be blocked with an eccentric tension lever (10), which is formed by a pivotable part (24) of the handlebar (6).
本发明提出，该摆动活节（8）可借助一偏心夹紧杠杆（10）被锁止，该偏心夹紧杠杆由该手把弓形件（6）的一可摆动的部件（24）构成。
ip.com

However, as Sprint embraces retail consumer electronics, it will see that -- on some level -- the enemy is itself, a familiar position for a company that has juggled hosting the wireless networks of Helio, Disney Mobile, its cable joint venture Pivot and its own Boost.
ENGADGET: Switched On: The WiMAX Window (Part 2)