http://dewey.info/scheme/a14/ en
621.381 Electronics
621.3815 Components and circuits
621.3815028 Auxiliary techniques and procedures; apparatus, equipment, materials
http://dewey.info/scheme/a14/ vi
621.381 Điện tử học
621.3815 Thành phần và mạch điện
621.3815028 Kỹ thuật và quy trình phụ trợ; máy móc, thiết bị, vật liệu
http://dewey.info/scheme/a14/ it
621.381 Elettronica
621.3815 Componenti e circuiti
621.3815028 Tecniche e procedure ausiliarie; apparecchi, attrezzature, materiali
http://dewey.info/scheme/edition/e23/ en
621.381 Electronics
621.3815 Components and circuits
621.38150112 Electronic circuits--forecasting 621.38150286 Electronic circuits--waste technology 621.38151 Electronic tubes 621.38152 Semiconductors 621.38153 Printed circuits and circuits for specific functions 621.38154 Supplementary components 621.38159 Analog-to-digital and digital-to-analog converters
http://dewey.info/scheme/edition/e22/ de
621.381 Elektronik
621.3815 Bauelemente und Schaltungen
621.38150112 Elektronische Schaltungen—Prognostik, . . . 621.38150286 Elektronische Schaltungen--Abfalltechnik, . . . 621.38151 Elektronenröhren 621.38152 Halbleiter 621.38153 Gedruckte Schaltungen und Schaltungen für einzelne Funktionen 621.38154 Zusätzliche Bauelemente 621.38159 Analog-Digital- und Digital-Analog-Umsetzer
Dewey Decimal Classification
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