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1. �O(sh��)Ӌ(j��)��(bi��o)��(zh��n)��GB/T12238��1989
2. ���m�B�ӳߴ�:GB/T9113.1-2000; GB/T9113.2-2000 GB/9115.1-2000;GB/T9115.2-2000
3. �Y(ji��)��(g��u)�L(zh��ng)��: GB/T1221-1989
4. ����ԇ�(y��n):GB/T13927-1992; JB/T9092-1999
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