Ping Jia Books

Jing ji fa
Jing ji fa

By Ping Jia

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Ben shu jie shao le jing ji fa ji chu zhi shi ; shi chang guan li fa ; lao dong fa yu she hui bao zhang fa deng.

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If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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