That is an eccentric wheel.

那是个偏心轮.

辞典例句

Using eccentric wheel and spring, an instrument was developed in this study.

采用偏心轮和弹簧结构, 研制了口腔修复体疲劳寿命测试机.

互联网

There are eccentric wheel, rubber software, main shaft and shaft - bearing in the vibrating chamber.

振荡室内有偏心轮 、 橡胶软件 、 主轴、轴承等组成.

互联网