That basic slip joint set the evolutionary stage for a further modification: the cocking slip joint.

这个基本的滑动接头为进一步的改进奠定了进化阶段：竖起滑动接头。

The first was a basic slip joint, like you'd find in a Swiss Army Knife.

第一个是基本的滑动接头，就像您在瑞士军刀中看到的那样。

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，发现带有翘起滑动关节的爪子可以用足够的力快速闭合以产生冲击波。