autocollimator / ˌɔ toʊˈkɒl əˌmeɪ tər /

📖毕业后词汇自动准直器自动准直仪自动协调器自动调校器

autocollimator 的定义

n. 名词 noun

Optics.

  1. an instrument combining the functions of a telescope and collimator, for detecting and measuring very small deviations in a beam of light.