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| Duoton m (An image that uses only varying levels of a single color to display the image. For example, a black and white image uses varying levels of gray to display an image; a duotone would use varying levels of a color, such as green, to display that same image) | |||
| Duplexreproduktion f; Duoton m; Duplexdruck m | |||
| Duplexautotypie f | |||
| Doppeltondruck m | |||
| duotone: 5 phrases in 3 subjects |
| Communications | 2 |
| Immigration and citizenship | 2 |
| Information technology | 1 |