The function implements a preemptive look-ahead mechanism for streamed operations.
这个函数为流操作实现预抓取机制。
For example, if the expression doesn't use the last function then it is not necessary to do look-ahead processing to determine how many elements there are in the context list.
例如，如果表达式不使用last函数，那么就不必执行先行处理来确定上下文列表中有多少元素。
In this paper we consider two online problems which are naturally maximization problems with look-ahead.
本文讨论了两个自然带前瞻的在线最大化问题，并分析了竞争比的上下界。
NURBS interpolation algorithm, which can fit diverse machine tool's kinetic characteristics and has the function of look-ahead control, is proposed.
提出了一种具有机床动力学自适应能力与曲线前瞻控制能力的NURBS曲线插补算法。
At the server side, the protocol sets up a maximum trying number to prevent the brute-force attack, and a look-ahead parameter to realize counter resynchronization.
该协议通过在服务器端设置最大认证尝试次数来防止蛮力攻击，并设置前顾参数来实现计数器重同步。
Always look off to the side or straight ahead, but never look down if you feel uncomfortable.
如果你觉得不舒服，可以看旁边或者直视前方，但绝不要低头看下方。
There is nothing like a birthday to make me look back at the year behind and be hopeful for the year ahead.
再也没有一天像生日这一天，能够使我去回顾过去以及对未来充满希望。
Ask specific questions about the challenges the person would face in the position, and look for whether he's answering on the fly or has given some thought to the issue ahead of time.
针对他们在应聘岗位上可能面临的挑战，对他们提出一些问题。从他们的回答中，可以观察到他们是临时做出的仓促回答，还是提前已经做到了深思熟虑。
Look not at the road ahead but the immediate surroundings, and the question seems absurd.
不要展望将来的道路，先看下眼前的环境，这问题便变得很荒谬。
There are a number of fascinating figures and observations from Grigsby's presentation (embedded below) about the state of the mobile web and the challenges ahead. It's definitely worth a look.
在Grigsby幻灯片展示中有许多很好的图表和观察数据(见下面的幻灯片)，很好的说明了移动网络的状况以及即将面对的挑战，绝对值得一看。
If you look at the last four or five years, for some reason Arsenal always got ahead of us slightly, but if you look now, it's certainly even.
或许光看最近四五年，因为某些原因，阿森纳成绩稍微比我们强丁点儿，但现在可大不同了。
You shouldn't look around when driving, please look ahead.
开车时不要东张西望，往前看。
This month I'll look at collaboration, some of the tools that are now available, and look ahead to where we might be going with the concept.
这个月我将探讨协作、一些现在可用的工具，并且预见一下我们能达到哪里。
A recent report predicts what technology will look like in the future and discusses what companies should be doing now to stay ahead.
最近的报告预言了未来的技术将会怎样，并探讨了公司应当如何做方可持续领先。
Every year, when I look out over my 700 eager freshmen on that first day of class, the view gives me optimism about the path ahead.
每年在新学期的第一堂课上，我都会面对700张充满渴望的新鲜面孔，这种景象使我对未来的道路更加乐观。
In the weeks ahead, I also look forward to sitting down with Governor Romney to talk about where we can work together to move this country forward.
在未来的几个星期，我还希望能和罗姆尼州长坐下来讨论在哪些方面，我们可以共同努力，推动这个国家向前。
开车时要看前方。
When they look ahead, they see roadblocks to their success.
当他们展望未来时，他们看到了通往成功道路上的重重障碍。
But when they look ahead, they see roadblocks to their success.
但当他们展望未来时，他们看到了通往成功的路上障碍重重。
Business Philosophy: Look ahead rather than back.
运营理念：一切向前看而不是往后看。
Daniel: Daddy, look ahead in the distance, the mountains there.
丹尼尔：爸爸，往远处看，那里有很多山。
We must learn the lessons and look ahead, not backwards.
我们必须汲取教训，往前走莫回头。
回首往昔展望未来。
Now it's time to look ahead to 2011.
现在，是时候展望2011年了。
It allows them to fund their own businesses, to look ahead with confidence.
它使他们有能力资助自己的买卖，对未来充满信心。
It would also look ahead at how the system will change.
它也会预测金融体系将如何改变。
I don't know for sure because I don't look ahead in the scripts.
没提前看剧本所以我也不是很清楚。
A look ahead to the completed project's source files provides a roadmap for the application constructed here.
对完整项目源文件的预先了解，可以为本文所构建的应用程序提供一个路线图。
With a full minimax tree, the computer could look ahead for each move to determine the best possible move.
对一棵完整的极大极小树来说，计算机能够向前遍历每一步，直到找到最佳步骤为止。
With a full minimax tree, the computer could look ahead for each move to determine the best possible move.
对一棵完整的极大极小树来说，计算机能够向前遍历每一步，直到找到最佳步骤为止。
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