"Telecommunication:Switching" CNS Standards List| Information technology | Information technology | Single Phase | Magnetic Pick | Use conventional | Fixed resistor | High | Emission Spectroscopic | |
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CNS 13802-9
2021 Edition Graphical symbols for diagrams (Telecommunication:Switching and peripheral equipment) 電機工程製圖符號(電信:交換及周邊設備) |
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