键管理器封装了代理键生成函数。
The key manager encapsulates the surrogate key generation function.
键管理器类将使用该表生成新键值。
This table will be used by the key manager class to generate the new key values.
键管理器可以是一个助手类。
显然，键管理器是模块化设计的一个很好的例子。
Obviously, the key manager is a good example of modular design.
很多大型的应用程序使用键管理器方法维护所有表的代理键。
Many large applications use the key manager method to maintain the surrogate keys for all tables.
对于实现对于大型系统和跨平台系统，键管理器是一个好选择。
The key manager implementation is a good choice for large and cross-platform systems.
还以实例论述了供应键管理对改进服务、缩小库存成本的作用。
Also introduced is a real case that proves the role the Supply Chain Management plays in improving service and reducing inventory investment.
清单5向数据库添加了一条赛道和一个地点，由从trails中的location_id列指向locations中的id列的外键管理。
Listing 5 adds a trail and a location to the database, managed with a foreign key pointing from the location_id column in trails to the id column in locations.
其他一些小约束的应用，比如管理下标键的规则。
Some other minor restrictions apply, such as rules governing subscripted keys.
就像城市地图按网格分成一些区一样，数据库管理器使用分区键来确定数据所存储在的位置(数据库分区)。
Just as a city map is organized into sections using a grid, the database manager USES a partitioning key to determine the location (the database partition) where the data is stored.
添加关键词搜索，选择管理搜索引擎…在搜索引擎的下拉菜单上，打开搜索引擎管理器，选择一个，点击编辑键…然后输入定义的关键词。
To add keyword search select Manage Search Engines… in the search engines menu to open the Search Engines Manager, select a search engine, press Edit Keyword… and enter a few characters to define one.
这些系统甚至可以直接下单订购这些零件，它们给管理人员发一封邮件，后者只需敲击确认键，就可以给零件供应商下达一个采购订单了。
Such systems also can even order those parts; the system sends an e-mail to a manager who, with one click, sends a purchase order to parts suppliers.
下面是系统资源管理器内置的方便的快捷键，在其他程序中也有着相似的用途。
Here are handy shortcuts built into Windows Explorer which may have similar features in other programs too.
为了使用前一节中定义的对象管理器和标识范围，需要使用范围键。
To use the object manager defined in the last section and to identify scopes, you'll need to use scope keys.
删除键让我们的收藏更容易管理、更赏心悦目。
The delete button keeps our collection manageable and enjoyable.
表中的外键维护着组间以及组内表之间的管理。
Foreign keys within tables maintain the relationship between intra-group and inter-group tables.
但是，要小心，不要让它阻碍您提高系统管理技能；随时可以按f6键查看运行的实际命令。
But, be cautious and do not let it become a crutch to your systems administration abilities; you can always click the F6 key to see the actual commands that are run.
如果愿意创建外键，当然很好，请参阅数据库厂商提供的文档或者咨询数据库管理员(DBA)。
If you'd like to create foreign keys, which is a great idea, check the vendor documentation for your database or ask your friendly neighborhood database administrator (DBA).
记住快捷键：Shift+Esc，如果有标签拖慢了你的浏览可以立马打开任务管理器。
Remember this shortcut: Shift+Esc to instantly open the task manager if one of the tabs slows down your browsing.
TwibbleDesktop： Twibble能让用户管理多达3个不同的Twitter帐号，同时支持键盘快捷键，位置识别和查看选项。
Twibble Desktop: Twibble allows users to manage up to 3 different Twitter accounts, and includes keyboard shortcuts, location awareness, and viewing options.
树形控件通过箭头键导航——就像Windows文件管理器中的树形控件。
The tree control is navigated via the arrow keys — just like a tree control in the Windows file manager.
试着用导航键alt +Fx关闭资源管理器应用程序。
Try closing the explorer application using the navigation keys Alt + Fx.
一些数据库管理员不太看好多态关联，原因是他们不怎么使用真正意义上的外键，但对于ChangingThePresent，我们自由地使用了多态关联。
Some database administrators do not like polymorphic associations because they do not use true foreign keys, but for ChangingThePresent, we freely use them.
如果当前已经打开了一个资源管理器窗口，F3键将会选中其搜索栏。
If you already have an explorer window open it will highlight the search bar.
不论何时，如果您想跳出客户系统控制台，那么按下Ctrl-组合键就可以直接返回到系统管理程序控制台。
If at anytime you want to escape the guest console, press Ctrl - and go right back to the hypervisor console.
我们来看看AmazonWeb服务(aws)，这一平台为经过授权的小组成员(开发者、测试员和管理者等)提供按需(on - demand)一键式(one - click)EC2实例。
Moving to Amazon Web Services (AWS) allowed on-demand one-click provisioning of EC2 instances to authorized team members (developers, testers, managers, etc).
为了支持按用户缓存，ApplicationServer管理员需要指定 cachespec.xml 中的缓存键使用sessionid。
To support user-scoped caching, the Application Server administrator would need to specify that the cache key within the cachespec.xml use the sessionid.
说明：设备管理器，以控制一键锁屏或者其它控制。卸载方式探索。
Device Manager to control a key lock screen or other controls. Uninstall way to explore.
因为复杂类型没有键，所以实体框架不能脱离父对象来管理复杂类型对象。
Because complex types do not have keys, complex type objects cannot be managed by the Entity Framework apart from the parent object.
用该方法编写键功能处理程序和显示管理程序有其独到的优越性，从而使整个系统程序更具条理，便于编写、阅读和修改。
With this method, the keyboard scanning function program and the display administering program will be organized logically, so the whole system program will be easy to program, read and revise.
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