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GB 711-1988̿ؽṹְͿִ
GB-T 17793-1999һ;ļӹͭͭϽ
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GB 710-1991̿ؽṹְִ
QB-T 3626-1999ķϩ
GB 708-1988ְִijߴ硢Ρ
GB 3274-1988̿ؽṹֺ͵ͺϽṹ ְ
GB-T 7220-2004Ʒ淶 GPS ṹ
GB-T 3505-2000Ʒμ淶 ṹ
GB-T 1031-1995ֲڶ ֵ
GB-T 131-1993еͼ ֲڶȷšżע
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