Extensions are best used when you need to change core functionality of an existing Ext JS component or feature, or when you want to build a brand new component altogether.
扩展最好在您需要改变一个已有ExtJS功能或特性的核心功能时，或者在您想要构建一个全新的组件时使用。
Research by the World Economic Forum finds that on average 42 per cent of the "core skills" within job roles will change by 2022.
世界经济论坛的研究发现，到2022年，工作岗位中平均42%的“核心技能”将会发生变化。
Yeah, you could change the manager but is that really the core of the problem?
是的，你可以更换教练，但是教练是球队问题的核心吗？
The core of this change is a modification in how we assign evidence to network launched applications.
这一更改的核心思想在于改变了我们处理网络装载应用程序的方式。
Our core technology is to change the chemical production of coatings to the natural and synthetic ones from plants extracting.
我们企业的核心技术是将涂料的化工生产改变为从植物提取原料进行天然合成。
And I thought deeply about this, and I concluded the worst thing that could happen is if we change our core values and let it slide.
我对此深思了一番，最后我得出结论，可能发生的最坏的事情，就是一旦我们改变了自己的核心价值然后随其自然。
The core disciplines are Project Management, Requirements, Analysis, Design, Implementation, Test, Deployment, Configuration Management, and Change Management.
核心的规律是关于项目管理，需求，分析，设计，实施，测试，开发，配置管理和变更管理。
In the core RUP it is a part of the Configuration and Change Management discipline.
在核心的RUP中，这是配置和变更管理规程的一部分。
At the core of the motor are piezoelectric materials-special crystals or ceramics that change shape very slightly in the presence of an electric field.
这个马达的核心是压电材料-特殊晶体或陶瓷，这些材料在电场出现时形状改变非常小。
Internal changes - As mentioned above, during the core entity lifecycle, there are certain context elements that are not supposed to change.
内部变化——如上所述，在整个核心实体生命周期内，某些上下文元素不期望被改变。
We can change our thinking and change even our deepest core beliefs.
我们能够改变我们的想法，甚至改变我们最基本的核心观念。
Vendors have implemented their own extensions that eventually make it into the SQL standard, but the core of SQL doesn't change.
厂商实现他们自己的扩展并最终使其加入到SQL标准，但SQL的核心没有改变。
Because you're at the core of this plan and not some form that you fill in and try to constrain your life to match, this plan can easily grow and change with you with just a few simple steps.
因为你是这个计划的核心，而不是其他的形式，它使你尽量约束自己，过与自己相符的生活。只需简单的几步，你就能够轻松自如地改变这个计划。
The core concern is succinctly stated: climate change endangers health in fundamental ways.
简练地提出关注的核心问题，就是气候变化从各个基本方面危害健康。
Moreover, Shanghai is showing more enthusiasm about attacking the core cause of climate change: greenhouse gas emissions.
除此之外，上海正对干劲十足地着手气候变化方面的核心事业——温室气体排放——展现出更多的热情。
Issues with SOA continue to be that SOA is a core and systemic change to the way we do it.
SOA的问题没有变，即SOA是要本质、系统地改变我们做IT的方式。
Schwaber’s 75% failure rate estimate corresponds to attempts to change the core culture of an organization as part of the Agile rollout.
Schwaber所估计的75％失败率，正是由于他们试图改变组织的核心文化，并以此作为实现敏捷的一部分。
I do not believe it would have been easier (nor appropriate) to completely change the direction, core tenants, and underlying code of RubyGems.
我不相信它将会在工作的时候(或者部分)，完全改变RubyGems的目标、核心理念和基础代码。
Steer and others argue that agriculture – and food security—should be a core element in global climate change talks.
Steer等人坚持认为，农业及粮食安安全应成为全球气候变化谈判的核心内容。
Snyder: Yes, the core architecture is pretty stable and probably won't change much unless there's an extremely compelling reason to do so.
Snyder：是的，核心架构相当稳定，除非有非常迫切的理由，否则可能不会有很大变化。
ASP.NET 2.0 adds a few new properties to the HtmlForm class, but doesn't change its core behavior, so self-posting pages are still the primary method of writing pages in ASP.NET.
NET 2.0为HtmlForm类增加了一些新的特性，然而核心行为并未改变，因此提交自身仍是ASP.NET编程的主要方法。
I shuffle around the tectonic plates in my chest/you know I gave it all/try to match our continents/to change seasonal shift/to form a mutual core
我挪动着心中的大陆板块/你知道我付出了全部/试着去吻合我们心中的陆地/去变换季节的交替/两个心相融合
Give users maximum tailorability (users may change or extend a library but cannot change the core language concepts).
给用户最大程度的剪裁能力(用户可以改变或者扩展一个库，但不可以改变核心的语言概念)。
Ideally, code pertaining to core functions should not change at all because of the time already invested in testing and stabilizing that portion of code.
在理想情况下，应该根本不修改属于核心功能的代码，因为在这部分代码的测试和稳定性处理方面已经投入了大量时间。
Archetypes are able to change their behavior to adapt themselves to specific business contexts while their core semantics and taxonomy remain the same.
原型能够更改其行为以适应特定的业务上下文需求，同时其核心语义和分类方法仍保持不变。
You have less control over the environment and network structure, because you can't change the core structure used to support the machines when they're not used in a grid.
您对这样的环境和网络结构的控制能力较低，因为在网格中不使用计算机时您无法更改支持该计算机所使用的核心结构。
Only by organizing company materials into a reusable library of assets-and by creating that library around the core business functional areas-will this situation change.
只有将公司的资料组织为可重用资产库(以及创建关于核心业务功能区域的库)，才能使得这种情况得到改观。
A virus can change registry keys, attach itself to core system files, and evade uninstaller programs.
病毒可以修改注册表键值、注入系统核心文件中，并且避开卸载软件。
First-order change involves doing better what we already do, while second-order change alters the core ways we conduct business or even the basic business itself.
一阶变化侧重于把现在正在做的是做的更好，而二阶变化改变了我们从事的事业甚至基础生意本身的核心内容。
First-order change involves doing better what we already do, while second-order change alters the core ways we conduct business or even the basic business itself.
一阶变化侧重于把现在正在做的是做的更好，而二阶变化改变了我们从事的事业甚至基础生意本身的核心内容。
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