| 1. | It is always difficult to assure good insulation between the electric leads . 要保证两个电触头之间有良好的绝缘总是很困难的。 |
| 2. | Technical specification for electric contacts of rivet type 铆钉电触头技术条件 |
| 3. | Technical specification for copper - chromium electrial contact 铜铬电触头技术条件 |
| 4. | Preparing a new type of silver - free contact material 新型无银触头材料的研制 |
| 5. | Metallographic examination of the electric contact materials 电触头材料金相检验方法 |
| 6. | Technical specification for silver - graphite electrical contacts 银石墨电触头技术条件 |
| 7. | Metallographic atlas of the electric contact materials 电触头材料金相图谱 |
| 8. | Research status of rapidly solidified mg - based alloys 2触头材料的研究进展 |
| 9. | Copper - tungsten and silver - tungsten electrical contacts 铜钨及银钨电触头 |
| 10. | Automatic striking and grinding thickness 3 动静触头允许磨损厚度mm 3 |