IPC-A-610D Chinese.pdf - 第288页
9-8 10 pf 9-9 10 pf 1 2 9-10 9-4 IPC-A-610D
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B
A
A
A = 0.25 mm [0.00984 in]
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9-8 10 pf 9-9 10 pf 1 2 9-10 9-4 IPC-A-610D