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单词 black-step
释义

Definition of black-step in English:

black-step

noun
Printing
  • Attributive relating to or designating thick black marks printed at progressively differing positions on the fold of the outer leaf of each section, and used as a guide to collating the sections in the correct order for binding.

Origin

1940s.

 
 

Definition of black-step in US English:

black-step

noun
Printing
  • Attributive relating to or designating thick black marks printed at progressively differing positions on the fold of the outer leaf of each section, and used as a guide to collating the sections in the correct order for binding.

Origin

1940s.

 
 
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更新时间:2024/11/11 10:07:57