HD
adjective uk/ˌeɪtʃˈdiː/ us/ˌeɪtʃˈdiː/
高清晰度（high-definition的缩写）
abbreviation for high-definition: used to describe a system for showing very clear pictures on a television or computer screen or for producing very clear sound
The series was shot entirely in HD. 这一系列全部用高清晰度技术拍摄。
HDTV sets 高清晰度电视机