motor pinion meaning in Chinese

电动机小齿轮

Road vehicles - diametral pitch starter motor pinions iso 8123 : 1991
道路车辆.起动发动机径节小齿轮
Specification for diametral pitch starter motor pinions for road vehicles
道路车辆用经节起动器电动机小齿轮规范
Road vehicles - metric starter motor pinions - part 1 : currently used pinions iso 9457 - 1 : 1991
道路车辆.米制起动器电动机小齿轮.第1部分:普通小齿
Road vehicles - metric starter motor pinions - part 2 : pinions with 20 pressure angle iso 9457 - 2 : 1994
道路车辆.米制起动器电动机小齿轮.第2部分: 20度压力