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1\u3001\u6297\u7535\u78c1\u5e72\u6270<\/p>\n

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2\u3001\u4fe1\u566a\u6bd4(SNR)<\/p>\n

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3\u3001\u9002\u5e94\u6027<\/p>\n

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4\u3001\u4f4e\u529f\u8017<\/p>\n

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