1.
In a hierarchical data base, the successive vertical dependencies of records or segments.
在层次型数据库中，表示数据库元素记录或段的纵向逐次的相关性。
2.
Research on the Nutrient Feeding Miyun Reservoir from the Lower Reaches of Watershed;
密云水库流域下游营养元素流失入库规律研究
3.
an element of a database record in which one piece of information is stored.
存储了一条信息的数据库记录的元素.
4.
Multiple attributes or elements map to the same column in the database table
多个属性或元素映射到了数据库表中的同一列
5.
A modeling method using dual vector for elementary elements of mechanism knowledge base is proposed.
提出了知识库基本元素的对偶矢量建模方法。
6.
Study on the Regularity of Move, Enrichment, and Translation of Cadmium and Other Heavy Metals in the District of the Three Gorges Reservoir;
三峡库区镉等重金属元素迁移富集及转化规律
7.
Database-building and Spatial Variability of Soil Microelement of Shandong Province;
山东省土壤微量元素建库及空间变异分析
8.
Studies on Warehouse of Chinese Plant Modeling Elements in Bionic Design;
仿生设计中的中国植物造型元素库研究
9.
Design and research of teaching material library management system based on metadata;
基于元数据的教学素材库管理系统设计与研究
10.
An element composition database on Qing Dynasty Guan porcelain;
古陶瓷瓷釉元素成分数据库建立的基础研究
11.
Talking about the New Element of Talent Pool in Library--Library Technician
浅谈图书馆人才库的新元素——图书馆技师
12.
Influence of Lanthanon on Algae in the Reservoir of Baotou
稀土元素对包头引黄水库水中藻类的影响研究
13.
Study on Ecological Migration Risks of Heavy Metals in Uranium Tailings Dam
铀尾矿库中重金属元素的生态迁移风险研究
14.
TRACE-ELEMENT FEATURE AND TECTONIC SIGNIFICANCE OF THE KUBUSUNAN GRANITIC ROCK IN EAST JUNGGAR,XINJIANG
东准库布苏南岩体微量元素特征及构造意义
15.
The Micro-goethite of Microorganism Origin in Fushui Reservoir and Its Enrichment of Trace Elements
富水水库中微生物成因的显微针铁矿及其对微量元素的富集
16.
Geostatistics and GIS-based Spatial Distribution of Microelements in the Three Gorges Reservoir Area
基于地统计学和GIS的三峡库区土壤微量营养元素空间变异性研究
17.
proper nilpotent element
真幂零元素，根元素
18.
A trace element.
痕量元素，微量元素