ジアゾ複ふく写しゃ

noun

diazotype; diazo copying

Technical term for a photocopying process using diazonium compounds, often used in engineering and architectural blueprint reproduction.

• ジアゾ複ふく写しゃは青あお焼やきとも呼よばれる。

  Diazo copying is also called blue-line printing.