- electrical schematic diagram
- 电: electricity
- 原理: principle; tenet; axiom; the ...
- 图: picture; chart; drawing; map
- 供电原理图: scheme of power supply
- 原理图: basic diagram; diagrammatic layout; elementary diagram; key diagram; schematic circuits; schematic diagram; schematicdiagram; schematics; shematic diagram; simplified schematic; skeleton drawing
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