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Graphical symbols for electrical power, telecommunications and electronics diagrams. Frequency spectrum diagrams
出版:British Standards Institution

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基本信息
標(biāo)準(zhǔn)編號(hào): BS 3939 Section 25:1970
發(fā)布時(shí)間:1970/3/15 0:00:00
標(biāo)準(zhǔn)類別:Standard
出版單位:British Standards Institution
標(biāo)準(zhǔn)頁(yè)數(shù):0
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? British Standards Institution 2013
Replaces notes:
Replaces Supplements 1 to 7 of BS 530.
Replaced by notes:
Replaced by Parts 1 to 13 of the new edition.
替代本標(biāo)準(zhǔn)的新標(biāo)準(zhǔn)