http://dewey.info/scheme/a14/ en
621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting
621.31 Generation, modification, storage, transmission of electric power
621.319 Transmission
http://dewey.info/scheme/a14/ vi
621.3 Các phương tiện truyền thông (liên lạc) bằng điện, từ, quang học, kỹ thuật máy tính; điện tử học, chiếu sáng
621.31 Phát, biến đổi, lưu trữ, truyền điện năng
621.319 Truyền điện
http://dewey.info/scheme/a14/ it
621.3 Ingegneria elettrotecnica, ingegneria magnetica, ingegneria ottica, ingegneria delle comunicazioni, ingegneria degli elaboratori; elettronica, illuminazione
621.31 Generazione, modificazione, accumulazione, trasmissione dell'energia elettrica
621.319 Trasmissione
http://dewey.info/scheme/edition/e23/ en
621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting
621.31 Generation, modification, storage, transmission of electric power
621.3104 Special topics of generation, modification, storage, transmission of electric power 621.312 Generation, modification, storage 621.313 Generating machinery and converters 621.314 Transformers 621.315 Capacitors (Condensers) 621.316 Details and parts of generators 621.317 Control devices 621.319 Transmission
http://dewey.info/scheme/edition/e22/ de
621.3 Elektro-, Magnettechnik, technische Optik, Kommunikations-, Computertechnik; Elektronik, Lichttechnik
621.31 Erzeugung, Modifikation, Speicherung, Übertragung elektrischer Energie
621.3104 Spezielle Themen zu Erzeugung, Modifikation, Speicherung, Übertragung elektrischer Energie 621.312 Erzeugung, Modifikation, Speicherung 621.313 Generatoren und Konverter 621.314 Transformatoren 621.315 Kondensatoren 621.316 Details und Teile von Generatoren 621.317 Steuereinrichtungen 621.319 Leitungen
Dewey Decimal Classification
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