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Power bank / power bank

Power bank

This is book to build the model for the mobile power.At the same time the whole book can be divided in two,into a desk lamp

University

Jiangxi University of Finane and Economics

Jiangxi University of Finane and Economics
Nanchang, China

Pengcheng Huo,
Jiangxi University of Finane and Economics

Zhicai Zhang,
Jiangxi University of Finane and Economics