... copperplate etching 铜版画 copper-plate press 凹版印刷机 copper-plated iron screw ring 镀紫铜铁吊环螺钉 ...
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The New Jersey job was obtained, I contrived a copper-plate press for it, the first that had been seen in the country.
新泽西州的业务接到手，我为此设计了一部铜版印刷机，这在当地还是首创。
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