 |
| Chinese | English |
| 固定的额外能力 | fixed overhead |
| 有关测试的协议实现的额外信息 | protocol implementation extra information for testing |
| 额外 | excess |
| 额外分配 | additional allotment |
| 额外容量 | overhead provision |
| 额外工作 | extra duty |
| 额外感应 | surplus induction |
| 额外衰减测量同轴电缆 | excess-attenuation testing |
| 额外设备 | extras |
| 额外费用的高档话机原Bell System 的业务名称，当时用户宅内设备由市话公司垄断包办 | premium station set |