frequency modulation noise
| level
| frequency modulation noise | |
| tech. | 调频噪声 |
| level | |
| gen. | 层面 |
| gen. од. | 程度; 水准 |
| agric. tech. | 使平整 |
| hydroel.st. од. | 水平; 水准仪 |
| soil. | 水平的 |
| sport. од. | 级别 |
| tech. | 海拔、标高 |
| wind. | 液位 |
| |||
| 调频噪声 | |||
|
frequency modulation noise : 5 phrases in 2 subjects |
| Air defense | 3 |
| Technology | 2 |