爱克米螺纹 meaning in English

acme screw thread
acme thread

Single - and double - start acme thread with clearance for rail vehicles - part 1 : dimensions
有轨车辆用带间隙的单头和双头爱克米螺纹.第1部分:尺
Single - and double - start acme thread with clearance for rail vehicles - part 2 : thread limits and limit deviations
铁路车辆用带间隙单头和双头爱克米螺纹.第2部分:螺纹
Single - and double - start acme thread with clearance for rail vehicles - part 3 : thread gauges ; thread dimensions and permissible wear of thread gauge
铁路车辆用带间隙的单头和双头爱克米螺纹.第3部分:螺