简仪

简仪的主要装置是由两个互相垂直的大圆环组成，其中的一个环面平行于地球赤道面，叫做“赤道环”；

The primary structure of Abridged Armilla contains two large rings that are per-pendicular to each other , of which one is parallel with the equatorial plane and is accordingly called " equatorial ring ; ，

该仪器的结构和使用都比浑仪简单，而且除北极星附近以外，整个天空一览无余，故称简仪。

The apparatus is simpler than the armillay sphere in terms of structure and application ， and it gives a panorama of the celes-tial sphere except the part around Polaris ， so it is called Abridged Armilla .

古代天文简仪龙柱的复制

A replicate technology for the dragon 's pillar of the abridged armilla with the ancient astronomy

叙述了用玻璃纤维增强的环氧树脂复合材料等来复制古代大型天文简仪龙柱的工艺试验和制作过程。

This paper describes the technological test and the making process of the Abridged Armilla with the ancient large astronomy in epoxy-glassfiber reinforced composites , etc.