Choose two fields from the database table that comprise the primary key.

Accessor 1 contains all columns except the primary key.

访问器1包含除主键外的所有列.

The primary key can be specified only for the top root view.

不可以在一列或多列上同时有主键和唯一约束.

A primary key is a column a unique value for each row.

主键是指每记录行带有唯一值的栏目.

You must specify the primary key for a table.

您必须指定主键的表.

As a low-cost and efficient motorcar network protocol, LIN is used for auxiliary network of bus.

LIN是一种低成本、高效率的汽车网络协议, 作为CAN总线 的辅助网络被大量使用.

The whole model is based on the existing network protocol with concept-layered structure adopted.

整个模型是建立在已有网络协议的基础上并且采用了概念分层结构.

This paper puts forward a Linear Optical Network Protocol ( LONP ) based on Network ( MAN ) protocol DQDB.

在 城域 网协议DQDB的基础上提出线型光网络协议 LONP,组网方式是该协议中的重要一环.

This paper depicts an adaptive routing algorithms by initializing or maintaining routing table dynamically.

提出一种初始设置路由表,动态维护路由表的自适应路由算法.

The routing table cannot be recalculated because the remote directory is unavailable. Try again later.

远程目录不可用,无法重新计算路由表. 请稍后重试.

It can simulate the procedures of routing table generation and packets routing in LEO satellite networks.

该平台能模拟低轨卫星网络路由表的建立和数据包选路等过程.

The route entries in a routing table are of two types: host-specific and network-specific.

路由表中的路由记录有两种形式: 指定主机型和指定网络型.

At last, routing table updating algorithm is presented.

最后介绍了二级路由查找下的路由更新算法.

Deletes a route from the routing table.

删除一条路由记录.

Novice users can simply run Wise Disk Cleaner to keep their hard drive running more efficiently.

新用户只需运行智者磁盘清洁,以保持其硬盘驱动器运行更加有效.

Driver Wizard is a suitable for the vast majority of computer users a veteran utility software.

驱动精灵是壹款适合绝大多数电脑用户的老牌实用软件.

Utility software for multi-user access, load balancing of CPU, network, and memory resources.

实用软件 多用户 访问, 负载的CPU, 网络和内存资源的平衡.

Our product: stack chair beam chair , dining chair, student chair, table and so on.

主要产品有 餐椅, 餐台,休闲椅,办公椅, 学生椅等.

I set a dining chair.

我摆好一张餐桌椅子.

As the scarab traveled throughout Europe and Asia by trade, war and politics, its purpose changed.

当圣甲虫通过贸易, 战争和政治遍及整个欧洲和亚洲各地, 它的用途改变了.

The first scarab from Phoenicia was made in the 8 th century BC ( approximately the 23 rd dynasty ).

第一只圣甲虫来自腓尼基,产生于西元前8世纪 ( 大约是第23王朝 ).