Artificial intelligent assistant

mezzotint

mezzotint
/ˈmetsəutɪnt; `mɛtsəˌtɪnt/ n[C, U]
(print produced by a) method of printing from a metal plate, parts of which are roughened to give darker areas, and parts of which are smoothed to give lighter areas 金属版印刷术; 金属版印刷品.

牛津英汉双解词典

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