 |
| |||
| experimental selection | |||
| 试验 选择: 13 phrases in 11 subjects |
| Agriculture | 2 |
| Automobiles | 1 |
| Aviation | 1 |
| Business | 1 |
| Commerce | 1 |
| Electric machinery | 1 |
| Hydroelectric power stations | 1 |
| Plastics | 1 |
| Space | 2 |
| Technology | 1 |
| United States | 1 |
|
| |||
| experimental selection | |||
| 试验 选择: 13 phrases in 11 subjects |
| Agriculture | 2 |
| Automobiles | 1 |
| Aviation | 1 |
| Business | 1 |
| Commerce | 1 |
| Electric machinery | 1 |
| Hydroelectric power stations | 1 |
| Plastics | 1 |
| Space | 2 |
| Technology | 1 |
| United States | 1 |