 |
| |||
| 多级索引 | |||
| multiple index: 16 phrases in 9 subjects |
| Advertising | 1 |
| Agriculture | 1 |
| Business | 1 |
| Economy | 2 |
| Electronics | 3 |
| Hydroelectric power stations | 1 |
| Project management | 1 |
| Securities | 1 |
| Technology | 5 |
|
| |||
| 多级索引 | |||
| multiple index: 16 phrases in 9 subjects |
| Advertising | 1 |
| Agriculture | 1 |
| Business | 1 |
| Economy | 2 |
| Electronics | 3 |
| Hydroelectric power stations | 1 |
| Project management | 1 |
| Securities | 1 |
| Technology | 5 |