 |
| |||
| 延长使用寿命 | |||
| extended life: 12 phrases in 6 subjects |
| Aviation | 3 |
| Electronics | 2 |
| Metallurgy | 3 |
| Name of organization | 1 |
| Space | 2 |
| Technology | 1 |
|
| |||
| 延长使用寿命 | |||
| extended life: 12 phrases in 6 subjects |
| Aviation | 3 |
| Electronics | 2 |
| Metallurgy | 3 |
| Name of organization | 1 |
| Space | 2 |
| Technology | 1 |