Since full-text indexing requires extracting the text information, many object went through a painfully slow retrieval from tape, impacting the speed of full-text indexing. 由于创建全文本索引需要提取文本信息,因而需要从磁带上检索很多对象,这个过程是十分缓慢的,大大影响了创建全文本索引的速度。
In this research, the object is the truncated conical shell punched from the purple copper tape. 在研究的过程中,以用紫铜带冲压而成的截顶圆锥壳作为研究对象。