铰接

Because the ideal “rigid joint” and “hinged joint” are inexistent, the stiffness of any connection types is between ideal rigid joint and hinged joint.

因为理的节点和铰点是不存在的，任何连形式的度都是介于理和完全铰之间的。

The team also noted a hinged flap near the base of the wing, called an Alula, which is deployed at right angles to the wing, which may be being used as a air flow-control device.

这个小组还注意到，翼附近铰的副翼，被称为小翼的，对翼成直，它可能被用来作为空气流量控制装。