cogwheel
n. 木齿铁轮；[机] 钝齿轮
例句
One cogwheel engages with the next.
齿轮一个个啮合在一起。
《牛津词典》
A cogwheel is placed where the wheat and rice stems cross at the base.
齿轮安在下方麦稻杆的交叉点上。
We use belt or cogwheel to regulate speed for the main shaft , ball lead screw and stepping motor for operating plat form .
主轴采用皮带或齿轮变速，工作台采用滚珠丝杆，步进电机；
