| 释义 |
- hectographs
- hectographing
- hectographed
- hectographed
词路径- entity
- abstraction
- abstract entity
- communication
- written communication
- written language
- black and white
- writing
- printing
- printing process
- planographic printing
- planography
- collotype
- collotype printing
- photogelatin process
- hectograph
- heliotype
上位词- collotype
- collotype printing
- copier
- duplicator
- photogelatin process
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