They are useful for old people as well.
它们对老年人也很有用。
Cameras are useful for recording videos of the family.
摄影机对录制家庭视频很有用。
Reading includes four steps. It's not easy to finish. Speed reading courses and books are useful for us.
阅读包括四个步骤，这不容易完成。快速阅读的课程和书籍对我们有用。
These are useful for raising awareness, and can best be tied into early phases of development, while the school is starting to discuss the issue of bullying.
这些对于提高意识很有用，并且能最好地与早期发展阶段挂钩，而学校也开始讨论霸凌的问题。
Control flows are useful for complex operations.
控制流适用于复杂的操作。
Attributes in XML schemas are useful for two things.
XML模式中的属性对两件事情有用。
These metrics are useful for Scrum progress tracking.
这些做法对Scrum进度回溯都是有益的。
LiveCD distributions are useful for several purposes.
LiveCD发行版本有若干个用途。
What types of requirements are useful for portal projects?
哪些类型的需求可用于门户项目？
Versions and timestamps are useful for synchronization purposes.
版本和时间戳对于同步目的很有用。
LDAP directories are useful for corporate address books and are widely used.
LDAP目录对于公司的通讯簿很有用并被广泛使用。
JConsole has a number of tabs that are useful for collecting statistics, including.
JConsole有许多对收集统计数据有用的选项卡，包括。
Tartar-control toothpastes are useful for people who tend to build up tartar quickly.
控制牙垢的牙膏对于很快形成牙垢的人是很有用的。
These test cases are useful for evaluating a product against its functional requirements.
对于根据功能需求评价产品来说，这些测试用例是有用的。
Assessment tools are useful for determining the effort required to complete the migration.
评估工具对于决定完成移植所需的努力是很有用的。
These invocations are useful for actions like logging, caching, or security validation.
这些调用对日志记录、缓存设置和安全验证等操作很有用。
Tools such as the Firebug plug-in for Firefox are useful for seeing these loads in action.
Firefox的Firebug插件等工具可用于查看这些负载动态。
Document templates are useful for maintaining consistency across all documents of the same type.
对于维护相同类型的所有文档的一致性来说文档类型是十分有用的。
Small mortars of wood or porcelain are useful for grinding herbs, pounding nuts, and the like.
小号的木制或瓷制研钵常用来捣碎草药，或是坚果之类的东西。
If vitamins are useful for anything, it's probably for tapping into our old friend the placebo effect.
如果维生素对任何预防病症都有益，那也很可能是因为人们长久以来的心理安慰作用。
Node methods like.remove ,.copy ,.append , and.insert are useful for pruning and manipulating trees.
象.remove 、. copy 、.append和. insert这样的节点方法对于修剪和操作树很有用。
They are useful for both requirements management and an additional, more formal, filtering mechanism.
对于需求管理和更加规范的筛选机制，这一点仍然十分有用。
They are useful for tracking your progress toward coverage goals, and for detecting coverage erosion.
这对于追踪您的进程朝向覆盖率数据目标的情况，以及发现覆盖率的破坏非常有用。
These simplification functions are useful for most cases, so you're encouraged to use them, if possible.
这些简化函数在很多情况下都很有用，因此尽可能使用他们。
Connection groups are not required, but they are useful for organizing related connection configurations.
连接组并不是必需的，但是有助于组织相关的连接配置。
They have the advantage of working across folders and projects so they are useful for a broad classification.
它们有在不同文件夹及项目之间工作的优势，这样对于广泛地分类就更加有用了。
The customer team is the one that knows whether certain system functions are useful for users at any point in time.
客户小组就是知道某些系统功能是否在任何时候都对用户有用的小组。
Because of their simplicity, key-value stores are useful for a smaller set of jobs but can do those jobs very quickly.
由于其简单，键值存储对于较小系列的作业非常有用，而且可以非常快速地执行那些作业。
The snapshots are useful for detecting existing database health problems, including poor health of servers and nicknames.
快照用于检测现有的数据库健康问题，包括服务器和别名的不良健康状况。
The snapshots are useful for detecting existing database health problems, including poor health of servers and nicknames.
快照用于检测现有的数据库健康问题，包括服务器和别名的不良健康状况。
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