| |||
| 元素含量 | |||
|
element content : 12 phrases in 6 subjects |
| Agriculture | 1 |
| Computer networks | 1 |
| Earth sciences | 1 |
| Space | 1 |
| Technology | 7 |
| Water resources | 1 |
| |||
| 元素含量 | |||
|
element content : 12 phrases in 6 subjects |
| Agriculture | 1 |
| Computer networks | 1 |
| Earth sciences | 1 |
| Space | 1 |
| Technology | 7 |
| Water resources | 1 |