HDB3
| Code
| HDB3 abbr. | |
| commun. | HDB3 code |
| Code abbr. | |
| gen. | code; cipher |
| construct. | equal-length code |
| IT tech. | coding scheme |
| tech. | code; job name |
| work.fl. IT | key; numeric code |
| |||
| HDB3 code | |||
|
HDB3 : 4 phrases in 2 subjects |
| Electronics | 2 |
| Information technology | 2 |