这些代码是不会因为内置存储器大小而改变，因为这个代码是用来标示不同功能硬件设备的代码。
These numbers do not change for simple storage increases and instead represent functionally different devices.
由于使用了内置和外置硬盘和外部设备连接的接口，所以可以无限扩大存储的容量。
By using the interfaces used to connect the internal and the external hard discs and the external devices, the storage capacity can be enlarged infinitely.
在数字键盘数字记录你写的东西在其内置的存储设备或选购的SD实时卡。
The digital pad digitally records anything you write in its built-in storage device or an optional SD card in real time.
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