Modern methods for tracking polar bear populations have been employed only since the mid-1980s, and are expensive to perform consistently over a large area.
跟踪北极能种群的现代方法仅在20世纪80年代中期才被采用，而且，要在大范围内连续采用这种方法，其代价非常高昂。
This is, in fact, a standard best practice if you want to perform consistent backups over a database using LVM snapshots.
实际上，如果希望对数据库执行一致的备份，那么使用LVM快照是标准的最佳实践。
On top of all this, every time there was a change in the application code, you'd have to perform the same manual tests all over again.
对于上述所有操作，一旦应用程序代码有所更改，您就必须从头执行相同的手动测试。
If you need to perform highly complex queries and very heavy analytical processing, plain SQL over shredded data can provide better performance.
如果需要执行高度复杂的查询和非常多的分析处理，在分解的数据上执行纯s QL可以提供更好的性能。
But the investment of time required will pay off many times over in employees who perform better and who are happier in their jobs.
但是投入必要的时间的确能够帮助那些表现出众、喜爱自己工作的员工取得成功。
But over the past decade, third-generation artificial turfs that perform every bit as well as natural grasses have begun to sprout.
但是在过去十年中，第三代人工草皮凭借其像天然草皮一样的表现开始崭露头角。
You'll also find that if you're default mode is "client mode" you'll naturally perform at a higher level over time - it's like the old saying goes - people live up to expectations.
同样如果你与人沟通的模式是在用“客户模式”，那么你很自然地会表现出更高水平。这就像老话说的，心有多大就能走多远。
Too many people are writing their own wrappers which perform the same common tasks over and over.
太多人在重复编写自己的包装器来执行那些常见任务。
Now, you can can build indexes over XML data, and perform shredding using a call to a stored procedure.
现在，可以在XML数据上建立索引，并通过调用存储过程执行分解。
Over the life of WebSphere Message Broker V6.0 there have been a number of significant enhancements to Broker Explorer and it is now able to perform many administration functions, such as.
在WebSphereMessageBrokerV6.0的生命周期中，对BrokerExplorer提供了许多明显增强功能，现在它可以执行许多管理功能，例如。
This has allowed us to deliver an interface that is over 90% faster than comparable interfaces that use more Ajax requests to perform work on the server-side.
与更多地使用Ajax请求以在服务器端执行任务的情况相比，这种方式要快90%以上。
Apart from all this, you can also provide custom types over the default Aegis types to perform mapping.
除此之外，您还可以提供定制类型，先于默认aegis类型执行映射。
MDA plans to perform approximately seventeen more hit-to-killintercepts over the next several years.
防御局计划在接下来的几年中进行17次以上的劫杀测试。
On average, people gave the veteran who had performed $4.26 million and the rookie who was projected to perform $5.25 million, over 20% more.
平均来看，人们支付给老将的报酬为426万，而未来新秀则为525万美元，超过老将20%多还不止。
Because UDP is faster (it does less), some environments that demand optimum performance (on a LAN) over reliability might perform better with UDP.
因为UDP的速度更快(它所进行的工作更少)，所以对于某些需要在LAN中实现最佳性能(而不是可靠性)的环境来说，使用UDP的性能可能会更好一些。
The horses perform extremely well, taking riders over fascinating terrain and through interesting villages.
马表现得非常好，带着骑马者跳过妖娆的地形穿过有趣的村庄。
In certain unusual cases — and I had a hard time thinking of many, to be honest — you may need to perform specific behavior when your custom objects are iterated over.
在某些不常见的情况下——老实说，我费了很大劲想到了很多——在您的定制对象可以遍历的时候，您可能需要执行特定的行为。
At this maturity level, you typically see adapters on each side, on the assumption that neither requestor nor provider can implicitly perform connectivity over common standards.
在这个成熟等级，通常在每一端都会有适配器，前提是请求者和提供者均不能隐式地执行基于通用标准的连接性。
The BIOS can perform a variety of hardware scans looking for bootable devices, and on some systems the BIOS can even try to perform a network boot over Ethernet.
BIOS可以执行各种硬件扫描，从而寻找可引导的设备，在某些系统上，BIOS甚至可以执行通过以太网进行的网络引导。
One color will likely perform better over the others, but we're not far from where we started.
一种颜色可能表现比其他颜色要好，但是我们的改变还不大。
It is tempting to assume that because equities have performed so badly over the past decade, they must be a sure thing to perform well over the next ten years.
在接下来的十年，股票必定会表现出众。这种设想很有吸引力，因为股票在过去十年表现太糟糕了。
Main goal of the SKA project is to perform unprecedented observation of radio sources using a network of dishes and aerials spread over Australia and New Zealand or through Southern Africa.
这项SKA项目的主要目的是通过遍布在澳大利亚、新西兰或贯穿南非的雷达和天线网络，对射电源进行前所未有的精确观测。
You cannot perform a query over the data or iterate over the contents to extract information.
不能在数据上执行查询，或者对内容进行迭代来提取信息。
If you don't want to perform your duties, why don't you let me take over your position.
要是你不想担负起你的责任，那你为什么不让位，让我来担任经理呐！
Before then, computers were programmed by rewiring their circuits to perform a certain calculation over and over.
因为之前电脑运转要把电路焊接起来，然后还可以对特定东西进行计算。
Do not perform a switch over if any of the prerequisites are not met.
如果有任何前提条件不满足，就不要执行切换。
This gives you full control over the names of the resources you are creating, but also forces you to perform several configuration steps.
这会让您完全控制您创建的资源名称，但是也强制您执行多个配置步骤。
It's also important to perform extensive load testing under a full load to verify that there is no system or performance degradation over time.
在满负荷下执行广泛的负载测试，验证一段时间内没有系统和性能降低也很重要。
The range of values that properties can take must also be predictable in some way in order to perform useful processing over the global collection of DOAP information.
属性可以具有的值的范围必须以某种方式能够预测，以便对全球收集的DOAP信息进行有用的处理。
The range of values that properties can take must also be predictable in some way in order to perform useful processing over the global collection of DOAP information.
属性可以具有的值的范围必须以某种方式能够预测，以便对全球收集的DOAP信息进行有用的处理。
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