| 1. | To make an rpm-drop test, a tachometer is needed .
做每分钟转速下降试验时，需要一个转速表。 |
| 2. | General specification for tachometer of the helicopter
直升机转速表通用规范 |
| 3. | Flexible shafts for speedometers and tachographs of automobiles
汽车速度计和转速表软轴 |
| 4. | Specification for circular electronic tachographs for road vehicles
道路车辆圆形电子转速表 |
| 5. | Electrically driven tachometer assemblies
电气驱动的转速表组件 |
| 6. | Electrically driven tachometers . generator
电动转速表.传感器 |
| 7. | Electron tachometer aging experimentation
电子转速表老化试验 |
| 8. | Aircraft equipment . indicator for electrical transmission tachometer
飞机设备.电传动式转速表指示器 |
| 9. | Verification regulation of tachometers
转速表检定规程 |
| 10. | Cixi zhengtong electronics co . , ltd
电子转速表生产线 |
