feat(4g): Compatible with ec20 and ec200

huangcm

2024-12-18 9d29be7f7249789d6ffd0440067187a9f040c2cd

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<?xml version="1.0"?>
<!DOCTYPE root [
<!ENTITY foo 'abc'>
<!ENTITY bar 'def'>
]>
<root attribute="&foo;">
   <element>&bar;</element>
</root>