 |
| |||
| vibration of string | |||
| 弦振动: 42 phrases in 10 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Bridge construction | 1 |
| Electronics | 3 |
| Geophysics | 1 |
| Metallurgy | 16 |
| Physics | 1 |
| Space | 5 |
| Technology | 12 |
|
| |||
| vibration of string | |||
| 弦振动: 42 phrases in 10 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Bridge construction | 1 |
| Electronics | 3 |
| Geophysics | 1 |
| Metallurgy | 16 |
| Physics | 1 |
| Space | 5 |
| Technology | 12 |