The researchers asked them if they napped and for how long.
研究人员询问他们是否午睡以及午睡多长时间。
You're not done yet: You have to tell CakePHP exactly what you want cached and for how long.
仅仅启用缓存还不够，还必须准确地告诉CakePHP需要缓存的内容以及缓存多久。
The impact of a crisis would therefore depend on how much oil production was lost and for how long.
因此，石油危机的影响力大小取决于石油生产的减少量以及减产的时间长短。
But depending on what you throw on the grill - and for how long - you may be jeopardizing your health.
但是根据你烤架上烤什么食物——以及烤多长时间——你可能正在损害自己的健康。
It's not a question of when they start raising interest rates but how quickly they do — and for how long.
问题不在于他们是否加息，而在于加息的动作有多么快——以及加息能够持续多久。
I also think it will come down to being mindful and deliberate with where I spend my time and for how long.
我也认为，归结起来，自己应该在怎么使用时间、使用多久方面深思熟虑。
No one has ever searched my baggage, or asked anything more than where I planned to stay and for how long.
没有任何人来查我的行李，除了有人来问我打算住在哪里、住多久之外，就再没有人来问我什么了。
Small cameras can now be embedded in the screen or hidden around it, tracking who looks at the screen and for how long.
微型摄像头现在能够被嵌入到大屏幕中或者隐藏在大屏幕的周围，追踪着那些看广告的人以及他们在广告前停留了多长时间。
Cells respond to this protein by growing differently depending on how much of it they're exposed to, and for how long.
细胞根据这种蛋白质的数量和作用时间长短进行分化。
When the rovers wake up, they receive a day's worth of commands telling them what direction to drive in and for how long.
漫游车重新工作时，他们会收到一天的工作指令，包括前进方向和工作时间。
The PC is fast replacing the TV set as an entertainment hub, and emotions run high over who gets to log on and for how long.
个人电脑正在迅速取代作为娱乐中心的电视机，一谈起谁登录互联网，以及上网多长时间，人们就激动不已。
So again, it's going to come down to final performance tweaks as to how many of them will remain on screen and for how long.
所以还是那句话，一切都要到最终的性能优化时才能决定它们的数量以及留存的时间。
Other questions to be answered, he says, are figuring out the best dose of strawberries and for how long they should be eaten.
另外的问题也亟待解决，他说，需要估算出食用草莓的最佳剂量和疗程。
When a piece of news breaks online, it's hard to predict how widely it will be discussed in blog posts or tweets and for how long.
当一条新闻在网上发布时，我们很难预测它会在多广的范围内被博客和微博所关注，也不知道这样的关注会持续多久。
Administered by the Securities and Exchange Commission (SEC), the act defines what company records must be stored and for how long.
由美国证券交易委员会执行的这一法案规定了必须存放的公司记录的种类以及存放期限。
Soon enough, screens will follow our eyes to perceive where we gaze. A screen will know what we are paying attention to and for how long.
不久的将来，屏幕将可识别人的眼神，进而理解我们在看什么，一块屏幕将能知道我们的注意力集中在哪里以及持续多长时间。
As she's getting older, it's getting better. especially if I can explain ahead of time to her who I'll be talking to, why and for how long.
随着她一天天长大，这种情况也有了很大改观，特别是当我事先告诉她，我要和谁交谈，为什么要谈以及谈多久的时候。
“Almost nothing was better than the random strategy unless you measure who interacts with who and for how long in a typical day, ” Salathé says.
萨拉瑟博士说，“相对于随机策略来说，几乎没有更好的办法，除非你能衡量谁与谁接触以及一天接触多长时间。”
Even if managers know that a new product will follow this cycle, they cannot be sure when each phase will start and for how long it will last.
即使管理者们知道一个新产品要经历这个周期，他们也无法确定各个阶段将会于何时开始，以及将要持续多长时间。
To motivate a man to go shopping, give him clear criteria - colours, sizes, brands, styles - and tell him where you will shop and for how long.
要说动男人去买东西，就要给他一个明确的标准——颜色、尺寸、品牌、样式——还要告诉他，你会去哪里买，要多长时间。
Clinical debate exists regarding every aspect of therapy: who, when, what, and for how long. Published guidelines are generally evidence-based.
临床上在乙肝治疗的每一个方面都存在争论，如患者、治疗时间、选用药品以及治疗疗程。
It is also a policy decision as to when each project must conform to the enterprise models and for how long a project may remain at variance to the enterprise.
什么时候每一个项目必须遵循企业模型，以及项目与企业保持差异性可以维持多长时间，这也是一个政策决定。
As of Thursday evening, the situation in Mumbai remained fluid, which made it harder to say how far — and for how long — markets might fall when they reopen, analysts said.
截至周四晚间，孟买局势仍然不稳；分析师们表示，这使得市场重开之后的下挫幅度和持续时间更加难以预料。
Then examine the Miscellaneous Events view of the server?s log.nsf for that day to see what the indexer is working on and for how long. You may see entries such as the following
然后检查该日服务器的 log.nsf的MiscellaneousEvents视图，以查看索引程序在这天做了什么以及做了多长时间。
International Circulation: It is controversial whether and for how long anticoagulation should be used after atrial fibrillation ablation. Could you tell us our views on that?
《国际循环》：对于房颤射频消融术后是否需要抗凝及其抗凝时间存在争议，请问您如何看待此问题？
Are there any fluent English speakers in management? If yes, who and have they lived overseas? If yes what country and for how long? Please also list professional qualifications.
管理层中是否有能说英语的人，如有，是哪一位，是否有在海外生活？在哪个国家，生活多久？并请提供学历和专业资格证明。
Although this was, objectively, far from the worst thing I experienced, I recall vividly the anguish I felt, simply because of the uncertainty about why and for how long the catheter would be needed.
虽然，客观上讲，植入导管并非我所经历的最糟糕的事情，但至今我依然清楚地记得当时我感受到的那种痛苦，仅仅是因为对为什么需要植入导管以及植入时间需要多长的不确定感。
Although this was, objectively, far from the worst thing I experienced, I recall vividly the anguish I felt, simply because of the uncertainty about why and for how long the catheter would be needed.
虽然，客观上讲，植入导管并非我所经历的最糟糕的事情，但至今我依然清楚地记得当时我感受到的那种痛苦，仅仅是因为对为什么需要植入导管以及植入时间需要多长的不确定感。
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