| |||
| 极化归零记录法 | |||
| 极性归零制记录; 极化归零记录 | |||
|
polarized return-to-zero recording : 3 phrases in 2 subjects |
| Information technology | 2 |
| Technology | 1 |
| |||
| 极化归零记录法 | |||
| 极性归零制记录; 极化归零记录 | |||
|
polarized return-to-zero recording : 3 phrases in 2 subjects |
| Information technology | 2 |
| Technology | 1 |