光学投影
In this paper, many collimation methods at the long distance, such as parallel light collimation, parallel light autocollimation, optical projection, mark image aiming and photoelectric, are described. Their principle, characteristics, application, measuring accuracy and development tendency are analyzed.
本文论述了平行光准直法、平行光自准直法、投射法、瞄标记准直法、光电法等远距离准直方法,并分析了其原理、特点、应用、测量精度及其发展趋势。
纳米英语 · 双语娱乐资讯
纳米英语 · 英语词汇
纳米英语 · 高考英语
纳米英语 · 英语口语