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主动发光标识
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主动发光标识
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active luminous sign
主动发光标识
中国国家标准GB5768-2009《道路交通标志与标线》中规定的主动发光形式的警示标识、指示标识、指路标识、禁令标识、辅助标识、施工防护等交通标识,以及自主研制的以LED为光源的交通标识类产品。又称LED发光交通标识
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symmetric bilinear form
symmetric bilinear function
symmetric bilinear functional
symmetric bilinear mapping
symmetric binary relation
symmetric block circulant matrix
symmetric block design
symmetric boundary condition
symmetric bounded domain
symmetric carve
symmetric categorial grammar
symmetric center
symmetric channel
symmetric composition
symmetric computer
symmetric cone
symmetric configuration
symmetric connection
symmetric continuous group
symmetric coordinate
symmetric coupling
symmetric covariant tensor
symmetric cryptographic algorithm
symmetric cryptosystem
symmetric cubic graph
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