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。
The theory of D-H is used to build the coordinate system of the globoidal indexing cam mechanism in this paper, the surface equation of the globoidal indexing cam is attained through coordinate transformation and verified based on the MATLAB software. 采用D-H方法建立了弧面分度凸轮机构的坐标系,利用齐次坐标变换推导了弧面分度凸轮的曲面方程。
Coordinate Indexing of Subjects 主题词组配标引
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。