pulse frequency modulation
| telemetry
| pulse frequency modulation abbr. | |
| earth.sc. | 脉冲频率调幅; 脉冲调幅 |
| el.mach. | 脉频调制 |
| rem.sens. | 脉冲频率调制 |
| tech. | 脉冲调频 |
| pulse-frequency modulation abbr. | |
| auto. | 脉频调制 |
| avia. | 脉冲频率调制 |
| telemetry abbr. | |
| agric. meteorol. | 遥测法 |
| auto. | 遥测学; 用遥测术传输数据 |
| el. | 遥测 |
| environ. | 遥感勘测 |
| hydroel.st. | 遥测技术 |
| met. од. | 遥测 |
| rem.sens. | 遥感勘测; 自动测量记录传导 |
| repr.biol. | 远距离测定法 |
|
pulse frequency modulation : 39 phrases in 9 subjects |
| Air defense | 7 |
| Aviation | 1 |
| Earth sciences | 2 |
| Electronics | 17 |
| Geophysics | 1 |
| Information technology | 1 |
| Space | 3 |
| Technology | 6 |
| Telecommunications | 1 |