| |||
| 接力中的交接 | |||
| 接力交接 | |||
|
relay change : 17 phrases in 9 subjects |
| Air defense | 1 |
| Automobiles | 2 |
| Electricity | 1 |
| Electronics | 3 |
| Hydroelectric power stations | 1 |
| Shipbuilding | 1 |
| Skiing | 1 |
| Space | 1 |
| Technology | 6 |
| |||
| 接力中的交接 | |||
| 接力交接 | |||
|
relay change : 17 phrases in 9 subjects |
| Air defense | 1 |
| Automobiles | 2 |
| Electricity | 1 |
| Electronics | 3 |
| Hydroelectric power stations | 1 |
| Shipbuilding | 1 |
| Skiing | 1 |
| Space | 1 |
| Technology | 6 |