Electronic flaws, called noise, that invade an analog signal are sometimes nearly impossible to differentiate from the signal itself.

电子的缺点，也就是干扰模拟信号的杂音，有时几乎不可能同信号本身加以区分。

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NASAengineers found no electronic flaws in Toyota that would cause unintendedacceleration, the U.S. Department of Transportation reported Tuesday.

美国运输部今天报告说，NASA（国家航空航天局）的工程师发现丰田汽车异常加速并非电子设备导致。

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Shares in Toyota have jumped nearly 5% after a US inquiry into reports of unintended acceleration found no electronic flaws in the company's cars.

美国一家调查组发现丰田汽车意外加速问题不存在电气缺陷，丰田的股票随之上涨近5%。

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California's study was hardly the first to alert the security world to the threat of electronic voting's flaws.

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