copper-plate press 中文意思是什麼
copper-plate press
解釋
凹版印刷機-
The new jersey job was obtained, i contrived a copper-plate press for it, the first that had been seen in the country.
新澤西州的業務接到手,我為此設計了一部銅版印刷機,這在當地還是首創。
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