USB(通用串行总线)具有传输速度快、可靠性高、使用灵活等优点，作为一种通信接口规范，他被广泛地应用在PC外设和便携式系统中。
USB (Universal Serial Bus) possesses good characteristics such as fast transmission, high reliability and flexibility. It has been widely used in the PC peripheral devices and potable system.
USB(通用串行总线)具有传输速度快、可靠性高、使用灵活等优点，作为一种通信接口规范，他被广泛地应用在PC外设和便携式系统中。
USB (Universal Serial Bus) possesses good characteristics such as fast transmission, high reliability and flexibility. It has been widely used in the PC peripheral devices and potable system.
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