| 1. | Interference calculation methods for radio - relay systems
微波接力通信系统干扰计算方法 |
| 2. | Relays and relay systems associated with electric power apparatus
与电源设备有关的继电器和中继系统 |
| 3. | Trans - horizon radio relay system
超视距微波中继系统 |
| 4. | Transhorizon radio - relay system
超地平无线接力系统 |
| 5. | Circuit balance relaying system
回线选? ?电方式 |
| 6. | Surge withstand capability tests for protective relays and relay systems
保护继电器和继电器系统的抗浪涌干扰能力试验 |
| 7. | Bus tie relaying system
母线分离?电装置 |
| 8. | Radio - relay system
无线接力系统 |
| 9. | Capacity series and radio - frequency channel arrangement for analog microwave relay systems
模拟微波接立通信系统容量系列及波道配置 |
| 10. | Nov . 13 , opening of new york - boston radio relay system for experimental service
11月13日，纽约至波士顿的无线电中继系统试验性开通。 |
