Regulating main feeding gear and movable needle guard.
采用调节式主输送齿及活动针档。
Small volume, light weight, movable, and can be hooked.
体积小，重量轻，可移动，可吊挂。
Above the swimming pool is a movable roof with skylights.
游泳池上方是一个带天窗的可移动屋顶。
