显影不足 meaning in English

under development
underdeveloping
underdevelopment

The preparation , composition and application technology of the uv - curable photosensitive ink for build - up multilayer ( bumb ) were studied and the effect of cyrante resin mass percentage composition on ink was investigated and the problems of underdevelopment and overdevelopment were analyzed in this paper
摘要研究了积层电路板用uv固化光敏油墨的制作、配方和应用工艺，考察了氰酸酯树脂的含量对油墨性能的影响，分析了过显和显影不足问题的形成及原因。