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hectograph | |||
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gelatin process; gelatine process; hectograph (印); jellygraph | |||
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heliotype | |||
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hectograph | |||
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胶版 : 137 phrases in 13 subjects |
Advertising | 11 |
Architecture | 1 |
Aviation | 1 |
Chemistry | 6 |
Electronics | 3 |
Exhibitions | 6 |
General | 16 |
Plastics | 2 |
Polygraphy | 44 |
Polymers | 1 |
Space | 1 |
Technology | 44 |
Telecommunications | 1 |