analog trunk
| terminal control element
| analog trunk abbr. | |
| avia. | 模拟中继 |
| terminal control element abbr. | |
| el. | 终端控制单元 |
| |||
| 模拟中继 | |||
| 模拟中继线 | |||
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analog trunk : 5 phrases in 1 subject |
| Electronics | 5 |