An axis end flying-blocking device used on a carding machine belongs to the smallroller class.
用于梳理机上的一种小滚筒类上的轴端挡飞花装置。
2
Often working in teams, participants built about 75 robots, ranging from small paper flowers whose buds opened and closed, to a working wooden roller coaster.
参与者们分成小组,共造出约75个自动装置,从花苞一开一合的小纸花到木质过山车,不一而足。
3
Roller Skating is not the role of powerful forces in the body, muscle and joint injuries is relatively small.