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NDC10 540.922
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Nippon Decimal Classification 10th ed.
0 General works
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1 Philosophy
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2 General history
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3 Social sciences
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4 Natural science
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5 Technology. Engineering
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6 Industry and Commerce
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7 The arts. Fine arts
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8 Language
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9 Literature
50 Technology. Engineering
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51 Construction. Civil engineering
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52 Architecture. Building
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53 Mechanical engineering
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54 Electronic engineering
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55 Maritime engineering
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56 Metal and mining engineering
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57 Chemical technology
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58 Manufactures
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59 Domestic arts and sciences
540 Electronic engineering
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541 Electric circuits, measurements and materials
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542 Electrical machinery
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543 Generation of electric power
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544 Transmission. Transformation. Distribution
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545 Electric lighting and heating
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546 Electric railroads
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547 Communication engineering
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548 Information engineering
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549 Electronic engineering
540.3
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540.5
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540.6
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540.7 研究法.指導法
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540.9 電気事業.電力事業
540.91 電気行政・法令
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540.92 電気事業史・事情
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540.93 電力問題
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540.94 報償契約
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540.95 電気事業経営・会計.電気料
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540.96 電気労働
540.921
·
540.922
540.9222
Subcategories
This category has only the following subcategory.
NDC10 540.9222
(1 C)
Category
:
NDC10 540.92
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