12集

• Glossary of electrotechnical , power , telecommunication , electronics , lighting and colour terms - terms common to power , telecommunications and electronics - insulators
  电工电力电信电子学照明和颜色术语.第1部分:电力电信和电子学通用术语.第12集:绝缘子
• Glossary of electrotechnical , power , telecommunication , electronics , lighting and colour terms - terms particular to telecommunications and electronics - telecommunications , channels and networks
  电工电力电信电子学照明和颜色术语.第3部分:电信和电子学专用术语:第12集:电信信道和网络