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安全防范系統(tǒng)

Security defensive system
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智能卡應(yīng)用系統(tǒng)

Smart card application system
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會議系統(tǒng)

Conference system
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樓宇自動化系統(tǒng)

Building automation system
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機(jī)房系統(tǒng)

Computer lab system
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