SSSSS is the 5-digit alphanumeric sequence number.

SSSSS是5位字母数字的序列号。

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The value "SSSSS" means that the machine type, model number, and plant of manufacture are not required to generate a unique system identifier.

值“SSSSS”表示不需要计算机类型、型号号码和生产厂家来生成唯一系统标识符。

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