astigmatizer / əˈstɪg məˌtaɪ zər /

📖毕业后词汇散光镜散光器聚光镜散光仪

astigmatizer 的定义

n. 名词 noun

Optics.

  1. a cylindrical lens used in a rangefinder to draw out the point image of a point source into a line.