出于对安全因素的考虑，公路有宽阔的车道和路肩、中央分隔带、界限、长长的出入口车道、为安全转弯而设计的弯道，以及限定数量的入口。
Built with safety in mind, the highways have wide lanes and shoulders, dividing medians, or barriers, long entry and exit lanes, curves engineered for safe turns, and limited access.
在一些地方，你可以想借多少书就借多少，但在其他地方，你只限于借阅一定数量的书几个星期，这样你可以有足够的时间读完所有已借的书。
In some places, you may borrow as many books as you want, but in others you are limited to a certain number of books for several weeks so that you can have enough time to finish all the books you've borrowed.
算数的，只要你的屏幕显示你已经赠了一定数量的大米，就意味着我们对此已经有记录。
Yes, once your screen says that you have donated a certain amount of rice, that means our servers have registered it.
我所介绍的这些作家们有些喜欢每天写上一定数量的字数或者页数，有一些只乐意写一页甚至一句。
Some like to write a certain number of words or pages every day, others were happy to write a page or a sentence.
在制定数字时代政策的过程中，有许多问题有待讨论，但有关何为拷贝的语义学不在其中。
There are many issues to be debated in determining policy for a digital era but the semantics of what constitutes a copy is not one of them.
莱亚德辩称，尽管贫穷让你感到不幸福，但一旦你有了一定数量的金钱，钱再多就不会让你感到更幸福。
Lord Layard argues that while being poor makes you unhappy, once you have a reasonable amount of money, having more makes you no happier.
对于结果的每一行，有一定数量的总是能够访问的属性，这些属性就变成了全局项目类。
On each result row is a certain number of properties that are always accessible, and these properties became the global item class.
如果表格有一定数量的片段键(或者分区键)值，而且在片段键上有同等谓词的表格上查询时，它会很有用处。
It is useful when a table has a finite set of values for the fragment key (or partitioning key) and queries on the table have an equality predicate on the fragment key.
如果你在某个领域获有一定数量的声明，潜在的雇主或客户就能知道你具备的专业技能。
When you've collected several statements in a given area potential employers or clients will know that you have some expertise.
以稳定数据库格式将数据存储在磁盘上永远都不会像把它们存储在内存中那样快，但存储速度仍然有很大的提升空间。
It'll never be as fast to store things in a stable database format on disk as to keep them only in memory, but there's still plenty of room to speed things up.
针对资金不够，笔者有一个想法，那就是国家强制车辆所有者需要支付一定数额的保险金，这些保险金可用作支付受害者医疗费用的一部分。
In terms of lack of funds, I also have another idea. That is to require every vehicle owner to pay a certain amount of premium that will be used as part of the victims' medical treatment expenses.
该策略的一个变体就是预测性加载策略，它在任何时候有针对特定数据的请求时加载相关数据。
A variant of this is employing a predictive loading strategy that loads related data whenever there is a request against a particular piece of data.
同时也不得不放弃自由意愿，因为能目睹我们未来的一部分历史就意味着有一定数量的预先注定存在。
We would also have to abandon free will—because witnessing part of our future history implies some amount of predestination.
在现有的几种解迷宫算法中，有两种常用算法使用固定数量的内存，而与迷宫的大小无关。
Of the several existing maze-solving algorithms, two commonly used ones consume a constant amount of memory regardless of the maze's size.
我认为，一个城市很难突然改变自己，因为城市有一定数量的DNA—它怎样在过去60、70年生长起来的—将永远存在。
I think it's difficult for a city to suddenly reinvent itself, because a certain amount of the DNA of a city-how it has grown for the last 60, 70 years-will always remain there.
而且，他确实识别出WMAP数据里有一定数量的圆环具有明显低于周围背景的温度差。
And indeed, he identified a number of rings within the WMAP data that had a temperature variance that was markedly lower than that of the surrounding sky.
在每个迭代周期中，项目组成员首先制定数据源格式标准，然后开发相应的系统功能，然后每周有两天时间部分项目组成员和领域专家召开工作会。
During the iteration, team members developed the feed specifications, developed the system, and select team members spent two days a week in working sessions with the SMEs.
尤其是有一两千万行数据的时候，每次修改模式、往数据库中添加索引都会数小时完全锁定数据库。
In particular, making schema changes or adding indexes to a database with more than 10-20 million rows completely locks the database for hours at a time.
一点背景：一个早期的理论-生存成本理论-认为每个有机体有一定数量的能量供消耗。
A bit of background: One early theory, the rate of living theory, held that every organism has a set amount of energy to expend.
对于那些不相信有智慧的造物主的物理学家而言，要解决这个让人百思不得其解的立论，就需要令现今人类可观测到的宇宙是不定数量数的宇宙(每个都有自己的物理法则)中的唯一一个。
The way out of this, for those unwilling to invoke an intelligent creator, is to allow that the observable universe is just one of an indefinite number of universes, each with its own laws of physics.
其次，我们必须查明细胞中是否有一定数量的基因对至少部分麻烦总是负有责任。
Second, we have to determine whether there are a limited number of genes in cells which are always responsible for at least part of the trouble.
月亮表明，有确切年龄的岩石的某个地点可以预测一定数量的不同规模的火山口。
The Moon showed that a site with rocks of a certain age would have a predictable number of craters of different sizes.
这份方案允许雅虎的股东选择现金或是固定数额的微软公司普通股票，整个花费有一半现金一半股票构成。
The offer allows Yahoo shareholders to elect to receive cash or a fixed number of shares of Microsoft common stock with the total purchase consisting of half cash and half stock.
但是，如何为模型选择特定数值的方法有可能带来一些问题。
But the way you pick the individual values to plug into the model can cause trouble.
这里唯一要注意的是，在你开始写客座博客之前，你的博客上应当有一定数量的文章。
The only caution here is to make sure that your blog will have a decent amount of good articles already published before you go around guest blogging.
只要你作出了一定数额的钱，每月的，你可以有资格获得垫款。
As long as you are making a certain amount of money monthly, you can qualify for a payday loan.
算例表明，当混沌搜索的次数达到一定数量时，混合优化方法可以保证算法收敛到全局最优解，且计算效率比混沌优化方法有很大提高。
Numerical examples illustrate that the present method possesses both good capability to search global optima and far higher convergence speed than that of chaos optimization method.
算例表明，当混沌搜索的次数达到一定数量时，混合优化方法可以保证算法收敛到全局最优解，且计算效率比混沌优化方法有很大提高。
Numerical examples illustrate that the present method possesses both good capability to search global optima and far higher convergence speed than that of chaos optimization method.
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