DIN EN 61158-4-18 (2013-01)现行
Industrial communication networks - Fieldbus specifications Part 4-18: Data-link layer protocol specification - Type 18 elements (IEC 61158-4-18:2010); English version EN 61158-4-18:2012, only on CD-ROM
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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