但它的实际用途可能是为便携式电子设备提供能源。
Their actual use may turn out to be to provide power for portable electronic devices.
本发明还公开了一种便携式电子设备的信息输入方法。
The invention also discloses information input method for electronic devices.
本发明还公开了一种便携式电子设备的信息输入方法。
The invention also discloses information input method for electronic devices.
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