limitator
n. 限制器;限动器;限幅器
例句
The utility model discloses a cocoon-breaking machine which comprises a machine seat, a limitator, a movable buckle, a cocoon-breaking plate and cocoon-breaking pieces.
本实用新型公开的脱茧机,包括机座、限位器、活动扣、脱茧板、脱茧片。