developing agent編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看developing agentdeveloping agent — 名詞名詞1. a chemical used to make film or photographic paper visible after exposure1.名詞釋義顯影劑a chemical used to make film or photographic paper visible after exposure例句The photographer poured developing agent into the tray.