When Owner cannot verify or document the original date of installation, the warranty period begins on the date marked on the serial number plate affixed to the water heater.
如果“所有人”无法证明或提供初始安装日期的证明文件，则质量保证期按照附在热水器上的系列号板所标注的日期计算。
Start node in order to validate the serial number prior to installation.
“启动”节点中，以便在安装前验证序列号。
An algorithm of dynamic serial number generating in the installation program is given.
文中给出了一种基于硬盘序列号和系统时间的软件动态序列号产生算法。
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