A Zeiss projector is one of a line of planetarium projectors manufactured by the Carl Zeiss Company.
Public viewings of the first Zeiss planetarium projector began in nineteen twenty-three.
VOA : special.2010.09.29
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。