variable spacing
| encryption
| variable spacing abbr. | |
| polygr. | 改变间距 |
| encryption abbr. | |
| gen. | 编 码; 译成密码 |
| cryptogr. | 加密术 |
| hydroel.st. | 纵向加密; 纵向加密 |
| IT | 加密 |
| space од. | 加密 |
| |||
| 改变间距 | |||
| 可变间距 | |||
|
variable spacing : 10 phrases in 5 subjects |
| Agriculture | 2 |
| Electronics | 3 |
| Geophysics | 1 |
| Information technology | 3 |
| Technology | 1 |