十二指肠和回肠属于身体的什么系统?。
你用过什么系统？
为什么做系统工作？他们需要研究什么系统特点？
Why do systems work? What market characteristics do they exploit?
这只取决于你打算使用它，你用什么系统的经验。
It just depends on what you intend to use it for, and what systems you have experience with.
因此，在模型中选择什么分解层级就决定了建模器选择暴露什么系统元素。
Thus, choosing what levels of decomposition to include in the model allows the modeler to choose what system elements to expose.
无论什么系统，只要它有转折点，都遵循着动力系统行为的普遍法则。
Whatever system it is, if it has a tipping point, the universal laws of behavior for dynamical systems apply.
这些步骤几乎与您正在使用哪个操作系统以及您安装什么系统没什么关系。
These steps may vary slightly depending on which Windows operating system you are using and how you have your system set up.
(什么系统、子系统、对象、协作……)——这个测试界定并测试了什么特性？
(What system, subsystem, object, collaboration...) - What feature does the test define and test?
如果你的意见只是少数，为什么系统要为了迎合你而改变，做出令其他人不满意的意见呢？
If you have a minority opinion, why should the system be changed to suit you to the detriment of everyone else?
由您决定这些性能指标是什么、使用什么系统驻留它们以及通过什么类型的API访问它们。
We leave it to you to determine what those metrics are, what systems they reside in, and the type of APIs through which they can be accessed.
即便如此，像众多的银行老板一样，他并不认为银行的资产负债表上潜藏着什么系统性的问题。
Even so, like most bank bosses he does not think there is a systemic problem lurking in Banks' balance-sheets.
但之后您参加了一个关于用例的专题讨论会，并认识到用例更加正确地描述了为什么系统将对涉众具有意义。
But then you attend a workshop on use cases and realize that they more accurately describe why systems will be valuable to stakeholders.
这篇文章提供了更多细节，记录当时发生了什么，为什么系统会宕机，Fours quare和10gen对事故的响应。
This article provides more details on what happened, why the system failed, and the responses of foursquare and 10gen to the incident.
无论使用什么系统，无论在将应用程序部署到生产环境中时进行什么样的功能和回归测试，您仍然会碰到一些无法避免的错误。
Regardless of what system you use and what functional and regression testing you do when your application is deployed for production, you can still get errors that are unavoidable.
不管医疗科学已取得了什么样的进步，免疫系统仍是我们抵抗疾病的主要防御手段。
Despite anything the science of medicine may have achieved, the immune system is our main defence against disease.
如果他们在系统布防时发现了什么问题，就会向基站发送无线警报信号，然后基站会发出警报。
If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.
不管有没有人类的影响，生态系统都会随时间演变，因此没有人可以说出夏威夷看起来应该是什么样的。
Ecosystems change over time, with or without the involvement of mankind, so no one can tell what Hawaii should look like.
很难预测奥巴马对失败的医疗保健系统所提出的改革会有什么结果。
It is harder to predict how Mr Obama's proposed reforms to the failing health-care system will turn out.
很难预测奥巴马对失败的医疗保健系统所提出的改革措施会有什么结果。
It is harder to predict how Mr. Obama's proposed reforms to the failing health-care system will turn out.
这份来自生物多样性和生态系统服务政府间科学政策平台（IPBES）的报告明确指出了什么是利害攸关的以及什么需要改变。
The report from the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) is clear on what's at stake and what needs to change.
一辆装有扩音系统的汽车开了过来，你一开始听到的是什么声音？
An automobile approaching with a souped-up audio system in it, and what sound do you hear at the very first?
一个系统化的广告计划是什么样的呢？
许多人认为，空中交通管制系统是由一排坐在美国机场雷达屏幕前的管制员组成的，他们告诉到达和离开的航班该做什么。
Many people think that ATC consists of a row of controllers sitting in front of their radar screens at the nation's airports, telling arriving and departing traffic what to do.
李先生，你为什么选择使用北斗卫星导航系统？
Why do you choose to use Beidou Navigation Satellite System, Mr. Li?
你可以设置一个“收文篮”系统，这样你就可以看到什么是等着要去做的。
You could set up an "in-tray" system, so you can see what is waiting to be done.
它关心的是系统将做什么，而不考虑将如何实现。
It concerns what the system will do, but not how that will be implemented.
你手机使用的地图和导航操作系统是什么？
What is the operating system of maps and directions on your phone?
其它系统与该系统交互什么？
SQL的范例是，用户（或应用程序）只需告诉数据库系统要做什么，系统自己就会得出如何做 这件事的最佳方法。
The paradigm of SQL is that the user (or application) just tells the database system what to do and the system itself figures out the best way how to do it.
如上面所述，用例的权重是由它所包含的用例事务的数量所决定的，但是，什么时候系统对刺激源的反应会计算成不同的？
As stated above, the weight of a use case is determined by the number of different use case transactions it contains. But exactly when does the system's reaction to a stimulus count as different?
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