coordinate indexing

A method of the three-coordinate machine to the measurement of direct error happened to the cylindrical indexing cam contour surface is proposed in the paper. It analyzes effect of the cam contour error to index error.

介绍了用三坐标机测量圆柱分度凸轮廓面法向误差的方法，在此基础上分析了廓面误差对圆柱分度凸轮机构分度误差的影响。

Coordinate Indexing of Subjects

主题词组配标引

This type of coordinate indexing is said to be manually operated, since the recording of the accession number onto the features card is done by hand.

这种类型组配被称为是人工操作的，因为在特征卡上写登记号是用手写的。

Some problems in controlled thesaurus indexing are pointed out: low indexing efficiency, relation net among the descriptors and new terms aren't developed, and uncertain coordinate indexing.

分析了建立情报检索系统时受控主题标引的不足之处：标引效率低、语义网得不到扩充、不一致的组配标引。