洋红接触网片：摄制半色调图片用的洋红色接触网片，它只适合黑白原稿用。

Magenta contact screen: A type of contact screen in magenta colour. It is used for making half-tone from black-and- white original only.

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图片原稿：作复制用的相片，图画或美术作品。

Original: Photograph, drawing or artwork to be reproduced.

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图片原稿：作复制用的相片，图画或美术作品。

Original: Photograph, drawing or artwork to be reproduced.

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