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Analog-digital circuit 1. Insure C36 and C33 placed next to each other to avoid open stubs 2. Keep UART lines away from 26 MHz traces 3. Keep 26 MHZ t 阅读全文
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Violin prodigies (神童), I learned , have come in distinct waves from distinct regions . Most of the greatperformers in the late 19th and early 20th cen 阅读全文
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Progress in fighting Democratic Republic of the Congo's Ebola outbreak, the second worst ever, will be reversed if fighting continues around the disea 阅读全文