大齿轮 rack wheel
gearwheel
bull wheel
[机] big gear wheel
main gear
- 这个大齿轮带动小齿轮使滚筒旋转。
This large gear turns the small one to rotate the cylinder. - 大齿轮允许进行十分顺利齿轮火车。
The larger gears allow for an extremely smooth gear-train. - 介绍大齿轮高精度圆锥孔小余量进行修复的加工方法。
Repair machining methods for the high precision taper bore with small machining allowance have been described.