time and frequency
| control
| time and frequency | |
| el. | 时间和频率 |
| geophys. | 时间与频率 |
| control | |
| hydroel.st. | 调节 |
| hydroel.st. од. | 控制 |
| IMF. | 管制 |
| manag. | 管理、管制; 核对; 存根 |
| met. | 调整; 操纵; 控制装置 |
| pest.contr. | 防治 |
| |||
| 时间和频率 | |||
| 时间与频率 | |||
| |||
| 时间与频率 | |||
|
time and frequency : 53 phrases in 15 subjects |