| 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. | Engine crank tachometer provide vtec control function
发动机曲轴转数表提供vtec控制功能。 |
| 4. | Standard specification for tachometers , various
不同转速计标准规范 |
| 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. | No external tachometer or sensors
无外置速度计或传感器 |
| 10. | Specification for tachometers , various
各式转速计规范 |
