每秒传输30幅图象画面的电视系统，它必须工作于宽带电磁波谱。
Television systems, which transmit 30 picture frames per second, must operate on a broad electromagnetic spectrum.
它毕竟是一个简单的球窝关节；它有一定的载荷；它在有限的生命中需要可靠性；它必须包含适合工作环境的材料。
It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contain materials suitable for the working environment.
文件将坚持这一事实：农业不会面临未知的情景，确实存在解决办法，而我们必须面对气候变化进行工作，而不是极力扭转它。
It will insist on the fact that agriculture will not be confronted with unknown situations and that solutions do exist; that we must work with climate change, not against it.
持久性：用户必须保存他们的工作，并在以后再次装载它，所以需要一个持久性机制。
Persistence: Users must be able to save their work and load it again later, so a persistence mechanism is needed.
JRE是一个本机进程，它必须在由这些纷繁复杂的细节定义的环境中工作。
The JRE is a native process that must work in the environment defined by these grubby details.
今早在记者会上我说这世界是一个混乱的地方，不幸的是它越混乱，我们就必须做越多的工作。
I said this morning to the press that the world is a messy place, and unfortunately the messier it gets, the more work we have to do.
一些公开源码执照要求由它派生出来的工作也必须作为公开源码提供。
Some open source code licenses require that derivative work incorporating that code must also be made available as open source.
该场景中的大多数工作是由提供者一方的处理程序完成的，它必须从消息头中恢复证书、检验它并使之生效。
The majority of the work for this scenario is in the provider-side handler, which must recover the certificate from the header, verify it, and validate it.
要使它正常工作，供应商必须实现特定于其运行时的序列化技术。
To get this to work correctly, vendors must implement serialization techniques specific to their runtime.
它并未真正关注某些程序必须处理很多数据以执行其工作这一事实。
It does not really address the fact that some programs must handle a lot of data to perform their work.
这个代码编写起来非常容易，但是伸缩性不好，因为它必须完成大量的工作来计算满足每个面值表示的查询的记录数。
The code is fairly easy to write, but it does not scale well because of the amount of work that it must do to count the number of records that satisfy the query that each facet value represents.
它必须能够在极端环境下正常工作。
但是，这会产生额外的工作；如果您希望人们使用您的API，则您必须将其文档化、支持它并且使其与您Web站点上的新功能保持同步。
However, this creates extra work for you; if you expect people to make use of your API, then you have to document it and support it and keep it synchronized with new features on your Web site.
考试制度的真正问题在于，它教授了一些关于工作本身的错误知识，如果你想在商界中获得成功，你就必须很快忘却这些东西。
The real problem with the exam system is that it teaches lessons about work itself that you need to unlearn pretty smartly if you want to get ahead in business。
当应用程序需要访问或更新事务资源中的数据时，它应该(通常是必须)使用事务来进行该项工作。
Whenever an application needs to access or update the data in a transactional resource, it should (and usually must) use a transaction to do so.
是的，它包括几百行代码并且可以工作，但是必须毫不犹豫地扔掉所有原型，这样才可以编写一个真正的程序。
Yes, it's a few hundred lines of code and it works, but every prototype must be discarded without regrets so a real program can be written.
为了竞争并弄到一份工作，你必须拥有一个网站，有效地管理它并迎合你的网络。
To compete and secure a job, you need to have an online presence, manage it effectively, and cater to your network.
如果救援工作失败，那么BP今后必须采取更为详尽的措施，它正准备在附近钻井，以此减少泄漏处所受到的压力。
If that fails, BP will have to try more elaborate measures. It is making preparations to drill another well nearby and thereby relieve pressure on the one that is leaking.
为了让需求是可追溯的，它必须是可引用的——也就是，在不同的工作产品之上，必须将它在整个生命周期中明确确定。
In order for a requirement to be traceable, it must be referable — i.e., it must be identified unambiguously over its entire lifecycle across different work products.
因为除非符号被替换否则应用程序无法正确工作，这要求必须建立构建流程来实现它，同时这个流程还要是快速的，当然是在开发环境。
Since the application doesn't work until the tokens have been replaced, build processes have to be set up to carry this out, and quickly, certainly in development environments.
首先，我们必须关注工作项本身，不要考虑它的子工作项。
First, we must focus on the work item itself, taking no account of its sub work items.
一旦我们开始观察那些我们的大脑在未经理解就做出的决定时，它必须基于现有的信息工作，但它几乎都会得出正确的决定。
Once we started looking at the decisions our brains make without our knowledge, we found that they almost always reach the right decision, given the information they had to work with.
这增加了编译器的工作，因为它必须生成这些簿记指令，同时增加了运行时环境的开销，因为它必须执行这些额外的指令。
This creates both work for the compiler, which must generate these bookkeeping instructions, and overhead for the runtime environment, which must execute these additional instructions.
如果出现问题，应用程序必须能够恢复数据库服务器并快速地让它投入工作。
If a problem does arise, the application must be able to recover the database server and quickly return it to full operation.
美国农业部并不是用来解决低收入农民或是非农业人口问题的。而且它的顾问们也必须确信对这些工作组投入更多精力的必要性。
USDA was not organized to deal with low-income farmers or the rural nonfarm population, and its agencies would need to be convinced of the need to direct more attention to these groups.
而工作人员告诉我，如果有任何东西暴露在核辐射中，我就必须把它留在核电站里，绝不能带出来。
They told me that if any of my equipment was exposed, I'd be asked to leave it behind at the plant.
它指示这是否是一个高优先级消息，必须在所有其他消息之前进行展示——例如，一个关键脚本停止工作。
It indicates whether this is a high-priority message from the system that must be presented before all other messages-for example, that a key script has stopped functioning.
它指示这是否是一个高优先级消息，必须在所有其他消息之前进行展示——例如，一个关键脚本停止工作。
It indicates whether this is a high-priority message from the system that must be presented before all other messages-for example, that a key script has stopped functioning.
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