1、大齿轮
...rack up 获胜rack wheel 大齿轮rack 架 ...
2、闸轮
... 轮闸储气缸活塞 wheelcylinderpiston 制动鼓，轮闸鼓 brake drum 闸轮 brake ring ; brake pulley ; rack wheel ; brake wheel ...
3、齿条传动齿轮
...rack type differential ==> 齿条差动装置rack wheel ==> 齿条传动齿轮rack winch ==> 牵引卷扬机 ...
4、棘轮
... rack up 排放完 rack wheel 棘轮 rack 架 ...