setting device的用法和樣例：
例句
- Possessing a speed blades gap adjusting device , permit to adjust steplessly the blades gap.
刀片間隙快速調整機構，可為刀口間隙進行無級調整。 - Structures of disktype stitch gauge adjustor,levertype adjustor and spring-actuated threading device make convenient use for customers.
具有操作簡便的線跡調整機構，按紐試針距離節槓桿式差動調節和彈出式過線機構，易操作，線跡美。
