| |||
| 次级矩 | |||
| |||
| 二次矩 | |||
| 二阶矩 | |||
| 次级矩 | |||
|
second order moment : 18 phrases in 9 subjects |
| Artificial intelligence | 1 |
| Chemistry | 2 |
| Earth sciences | 4 |
| Hydroelectric power stations | 2 |
| Polymers | 2 |
| Rail transport | 1 |
| Space | 2 |
| Sports | 1 |
| Technology | 3 |
| |||
| 次级矩 | |||
| |||
| 二次矩 | |||
| 二阶矩 | |||
| 次级矩 | |||
|
second order moment : 18 phrases in 9 subjects |
| Artificial intelligence | 1 |
| Chemistry | 2 |
| Earth sciences | 4 |
| Hydroelectric power stations | 2 |
| Polymers | 2 |
| Rail transport | 1 |
| Space | 2 |
| Sports | 1 |
| Technology | 3 |