Stencil manufacturing techniques include chemical etching, laser cutting and electroforming.钢网制作技术包括化学腐蚀, 激光切割和电铸.Original plate: Relief printing plate produced bu 7 photomechanical etching as distinct from electrotyping...
她用笔名艾莉森·库珀写作。She writes under the nom de plume of Alison Cooper.她用笔名写作。She writes under a pseudonym .乔治·艾略特是笔名, 她的真名是玛丽·安·埃文斯.George Eliot was a pen - name; her real name was Mary Ann Evans....