variable-frequency
| vibration test
| variable frequency | |
| geophys. | 可变频率 |
| vibration test | |
| agric. | 振动测试 |
| avia. | 耐震性试验 |
| expl. | 振动试验 |
| hydroel.st. од. | 振动试验 |
| space | 振动试验 |
| |||
| 可变频率 | |||
| 变频 | |||
|
variable-frequency : 127 phrases in 29 subjects |