My old artificial hand had a pretty basic open-close mechanism similar to a clamp.
我的旧假手有一个非常基本的开关装置，类似于夹钳。
2
Just sneak your hand in their mouth for a second and slip it out before they clamp down.
刚刚潜入你的手在他们的口为第二和支路出来之前，他们打击。
3
The enterprise mainly manufactures bolt cutters, pipe wrenches, captive hand tools most other pipeline products, including pipe clamp production scale ranks first in the country counterparts.