digital loop
| filter
| digital loop | |
| el. | 数字环路 |
| filter | |
| gen. | 过滤 |
| environ. | 过滤器 |
| math. од. | 滤波器 |
| met. | 滤光镜; 滤纸 |
| met. од. | 滤光片; 过滤机 |
| opt. | 滤光器，滤光片 |
| racing од. | 滤器 |
| rem.sens. од. | 滤色片 |
| |||
| 数字环路 | |||
|
digital loop : 63 phrases in 12 subjects |
| Air defense | 1 |
| Automobiles | 2 |
| Aviation | 2 |
| Communications | 2 |
| Computer networks | 5 |
| Electronics | 27 |
| Information technology | 7 |
| Multimedia | 1 |
| Project management | 1 |
| Space | 5 |
| Technology | 3 |
| Telecommunications | 7 |