底片 (dǐ piàn) — (photographic) negative; photographic plate (historical)

定義

例文

• 这张底片已经曝光了。
  Zhè zhāng dǐ piàn yǐ jīng bào guāng le.
  This negative has already been exposed.
• 冲洗底片需要专门的药水。
  Chōng xǐ dǐ piàn xū yào zhuān mén de yào shuǐ.
  Developing negatives requires special chemicals.
• 老摄影师还保留着玻璃底片。
  Lǎo shè yǐng shī hái bǎo liú zhe bō li dǐ piàn.
  The old photographer still keeps glass plates.