3 무료 아트워크 "발명"에 대해

A Persian wheel used in raising water from the Nile illustration by David Roberts (1796–1864).
이집트고대의
Portable steam engines design from the book Pawson and Brailsford’s Illustrated Guide to Sheffield and Neighbourhood, etc published by Trübner & Cie (1862).
열차농장
A11408405_0056
배터리발명
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