Gliding joints are usually small, and always flexible so that bones can slip and slide against each other.

动关节通常很小，而且也很灵活，以便骼可以动。

All these motions use gliding, or plane joints, like the one between the distal ends of your radius and ulna, and the carpal bones of your wrist.

所有这些运动都用动或平面关节，比如桡远端之间的关节，还有手腕的腕。

The scientists 3D-printed models of the various joints and found that a claw with a cocking slip joint can snap closed with enough force to generate shockwaves.

科学家们用 3D 打印了各种关节的模型，发现带有翘起动关节的爪子可以用足够的力快速闭合以产生冲击波。