E number

This paper refers to the indexing technologies of B~+-tree in DBMS, and combine it with the sparse numbering schema, and proposes a new indexed structure& B~+-tree structural index.

本文将关系数据库中B＋树索引技术与Sparse Numbering Schema相结合，提出了一种新的XML文件索引结构&B~+树结构索引，它对XML查询中连接操作和元素定位操作的优化有着重要作用。

In this particular index, the user looks up specific invoices only by their INVOICE_NUMBER& in other words, only equality predicates are applied to the INVOICE_NUMBER column.

在这个特定的索引中，用户仅按INVOICE NUMBER查找特定的索引，换句话说，仅向INVOICE NUMBER列应用了相等性谓词。

The electron range increases with decreasing atomic number and increasing incident beam energy E 0.

电子射程随着原子序数的减少和入射束能量E0的增加而增加.

Determining E . coli number by using OD value was a simple and rapid bacteria counting method.

利用OD值测定 大肠杆菌 数目是一种简单、快捷的细菌计数方法.