unit-block
| type
| relay interlocking
| unit block | |
| tech. | 组匣 |
| type | |
| gen. | 类; 打字 |
| gen. од. | 型 |
| dat.proc. | 键入 |
| f.trade. | 级 |
| hydroel.st. | 类型; 种类; 式样 |
| manag. | 样板 |
| math. | 类型，序型 |
| relay interlocking | |
| construct. | 继电连锁 |
| |||
| 组匣; ★ 组合 | |||
|
unit-block : 44 phrases in 8 subjects |
| Aviation | 4 |
| Communications | 3 |
| Computers | 4 |
| Electronics | 12 |
| Information technology | 4 |
| Space | 1 |
| Technology | 14 |
| Telecommunications | 2 |