| 1. | Bimetal type thermal switches for gas appliances 煤气装置的双金属热转换开关 |
| 2. | Tap - changers - performance requirements and test methods 抽头转换开关.性能要求和试验方法 |
| 3. | The theory and application of zone interlock selective protector 自动转换开关电器的选择及应用 |
| 4. | Lw95 series change - over switch in ships Lw95系列船用万能转换开关 |
| 5. | Flameproof conversion switch for coal mine 煤矿用隔爆型转换开关 |
| 6. | Design of automatic test system of aerial electronic equipment 智能型自动转换开关的通信接口设计 |
| 7. | Tap - changers - part 1 : performance requirements and test methods 抽头转换开关.第1部分:性能要求和试验方法 |
| 8. | Fixed handles for switch gears 转换开关装置的固定手柄 |
| 9. | Switches for appliances - particular requirements - change - over selectors 设备开关.特殊要求.转换开关选择器 |
| 10. | Shipbuilding - rotary switches 造船.旋转转换开关 |