It simply defers loading them until they are actually needed.
只是简单地推迟加载它们直到真正需要它们的时候。
Training is conducted at the appropriate time, close to when the skill is actually needed. 5
培训在适当的时候进行，接近实际需要该技能的时候。
The concept involves pre-allocating a pool of memory and reserving it until it is actually needed.
其思想是预分配一个内存池，并保留到真正需要的时候。
To reduce start-up time and resource usage, it does not load any plug-in until it is actually needed.
为降低启动时间和资源使用，它在实际需要任何插件时才加载该插件。
Another good question to ask would be whether suppression was actually needed on both the rows and columns.
另一个很好的问题就是是否在行和列上都真正需要suppression。
Is all the functionality you've planned actually needed?
你计划中的所有功能都是必须的吗？
This is a common pattern: Lazy Instantiation puts off creating the object until it is actually needed.
这是一个常用的模式：延迟实例化，只有当它确实需要的时候才实例化该对象。
The concept behind this technique is not creating objects in memory until they're actually needed by the application.
这项技术背后的理念就是直到应用真正使用的时候才在内存中创建对象。
One often doesn't know how to seize opportunities until they are actually needed, at which point it may be too late.
一个人往往到了真正需要机会的时候才知道如何去抓住机会，在此时或许为时已晚。
Firms that manage to load up on credit still suffer because they bear interest costs long before the money is actually needed.
即使那些拿到了巨额信贷的公司也遭受困境，因为他们承受着利息成本，而这笔资金可能要很久才需要。
Explicit and lazy loading enables you to postpone the request for related object data until that data is actually needed.
借助于显式和延迟加载，您可以推迟对于相关对象数据的请求，直到实际需要数据。
That's a possibility in this case, but you probably wouldn't perform this refactoring until you actually needed to re-use this code.
那就有可能是需要重构的原因了，不过除非真的需要重用这部分代码，否则您很可能并不会执行重构。
Have you ever wondered if the update statistics command you are about to run is actually needed since the last time you updated statistics?
自从最近一次更新过统计数据后，您是否想过您将要运行的update statistics命令是否真正必要？
So even if the resource allocation averages out across the year, it doesn't work well for the spike times, when the critical work is actually needed.
因此，就算资源分配每年都是平均的，在确实需要重要工作的关键时刻仍然无法达到很好的效果。
If CAS is actually needed, it can be enabled on a per application basis in the app.config file setting the runtime/NetFx40_LegacySecurityPolicyenabled flag to true.
如果确实需要CAS，就可以在每个应用程序的app.config文件中，将runtime/NetFx40_LegacySecurityPolicyenabled设置为true即可。
Yet we often find ourselves in situations where, despite spending tremendous time and resources, there's a mismatch between what has been designed and what is actually needed.
然而我们常常在投入了大量的时间和资源后，却发现自己身陷设计方案与实际需要不对称的矛盾之中。
It is actually needed to revamp vacuum furnace and expand its production capacity. The existing problems are introduced and analyzed and the revamping methods are raised.
改造减压炉提高生产能力，这是实际需要。介绍了目前减压炉存在的问题及其分析，提出了改造的方法。
And if you actually needed that explanation to get the subtext, you owe your elementary school English teacher a sternly worded note, though you'll probably need some help writing it.
要是你直到现在才搞明白他的言外之意，你应该给你的小学语文老师写个道歉函，当然你很有可能需要人帮才能写出来。
Hades is an open source library that's built on top of JPA and Spring to significantly improve the implementation of data access layers by reducing the effort to the amount that's actually needed.
Hades是一个开源库，基于JPA和Spring构建，通过减少开发工作量显著的改进了数据访问层的实现。
Hades is an open source library that's built on top of JPA and Spring to significantly improve the implementation of data access layers by reducing the effort to the amount that's actually needed.
Hades是一个开源库，基于JPA和Spring构建，通过减少开发工作量显著的改进了数据访问层的实现。
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