| |||
| 〔客〕原理图表 | |||
|
principle diagram : 14 phrases in 4 subjects |
| Aviation | 3 |
| Electric machinery | 1 |
| Hydroelectric power stations | 8 |
| Technology | 2 |
| |||
| 〔客〕原理图表 | |||
|
principle diagram : 14 phrases in 4 subjects |
| Aviation | 3 |
| Electric machinery | 1 |
| Hydroelectric power stations | 8 |
| Technology | 2 |