When catching exceptions, then, be certain you get all of them, be precise in how you do so, and use the information available in your chosen language to synthesize useful output.
于是，在捕获异常时，确信获取了全部异常且其处理方式是精确的，并使用您所选择的语言中的可用信息合成出有用的输出。
It is extremely useful when the user wants to know all of the results of one page.
如果用户想知道一个页面中的所有结果，那么它是非常有用的。
An example when this is useful is when all stereotypes coming from the same profile need to group properties together under the same category.
例如当所有的原型是同一个概要文件所使用的，并在同一类别下的属性集，是非常有用的。
The popup menu is very useful when you have large number of non-shared subunits and all of them have to be converted to same type during import.
您拥有大量的子单元，而且它们中的大多数都需要在导入期间转化为相同的类型时，弹出菜单就十分的有用了。
The popup menu is very useful when you have large number of subunits and all of them have to be converted to same type during import.
当您拥有大量的子单元，而且它们中的大多数都需要在导入期间转化为相同的类型时，弹出菜单就十分的有用了。
These systems are most useful when you have applications for a variety of systems and need to run them all at once.
当您拥有用于多种操作系统的应用程序，而且需要同时运行它们时，这些系统最为实用。
When I asked about what to do when my basement floods, they sent me to four useful sites—all of which I could have found easily on my own.
当我问他们墙角溢水之时该怎么办，他们发给我四个有用的网址——通过它们我自己就可轻易找到想要的结果。
"When our personal data becomes accessible to us in a useful form, all kinds of things become possible," said Mr. Zimbalist in an E-mail interview.
Zimbalist先生在一次邮件采访中说道，“当我们的个人数据变得可通过一个有用的形式获取的时候，很多事情将成为可能。”
The simultaneous release allows all projects to standardise on a particular set of dependencies; useful when later projects depend on earlier ones (such as JDT depending on Platform, or Mylyn on EMF).
这么多项目的同时发布使得所有项目都能符合特定的依赖集；当后续项目要依赖于早期项目时，这么做非常有用(比如jdt依赖于Platform,Mylyn依赖于emf)。
This is useful when editing and visualizing the structure of the information all at one time.
当您在编辑并同时查看信息的结构时，这一点就十分有用了。
Then when we have to look at all of them, we will have to take into account this relation, we have seen two useful methods.
现在来考虑所有的变量,考虑它们之间的关系，我们已经知道两个很有用的方法了。
All that money the candidates have been splashing out is useful at a time when Indonesia's economy is cooling sharply in the draught from the global downturn.
在一印尼经济在全球经济减速的大背景下正急速降温的时刻，候选人们花费的金钱对帮助经济很有用。
And of course this will be most useful when it is possible not just on our PCs but on our mobile phones, where we are all increasingly doing all our calling.
当然这一功能不仅是在我们电脑上使用同时也在我们的手机上使用时最有用了，因为我们总是在手机上来打电话的。
Of all subjects on this planet, I think they would have been hard put to name one less useful than Greek mythology when it came to securing the keys to an executive bathroom.
在这世界上所有的学科当中，当事关能否过上优越生活时，他们很难找出一门比希腊神话更不实用的学科了。
Some economists doubt whether defining a market is useful at all when judging marriages between very specialist firms.
一些经济学家怀疑在评估两个非常专业的公司的合并时，界定市场的方法究竟有没有用。
Of all subjects on this planet I think they would have been hard put to name one less useful than Greek mythology when it came to securing the keys to an executive bathroom.
在这个星球上的所有科目中，我想他们很难再发现一门比希腊神学更没用的课程了。
However, when we look not just at single rational statements, but at rational arguments (such as' all men are tall, Fred is a man, therefore Fred is tall ') we can see that the logic is useful.
然而，让我们把目光从单一的理论叙述移到理论论证上(像“所有男人都很高，佛瑞得是个男人，因此佛瑞得很高”)时，这种逻辑的作用就显而易见了。
This is useful when a Web page refers to several images: the client can request the page and then all the images over one connection.
在一个Web页面引用了多幅图片时，这就很有用：客户机可以通过一个连接先请求页面，再请求所有图片。
When trying to understand the state of an application, it is useful to know the state of all the bundles. The Eclipse Equinox bundle Explorer query, shown in Figure 5, does just that.
当尝试理解应用程序的状态时，了解所有包的状态是非常有用的。
Besides, I should practise my spoken English. I'm sure it will be useful when I meet the athletes from all over the world.
此外，我应该练习英语口语。我相信在遇到来自全世界的运动员时，英语口语是有用的。
Of all the subjects on this planet, I think they would have been hard put to name one less useful than Greek mythology when it came to securing the keys to an executive bathroom.
在这个地球所有的学科里，为得到总裁高级浴室的钥匙，我想他们会很难说出一个比希腊神学更没有用的学科。
It doesn't bother me but I think all this experience could be more useful when creating new prevention strategies.
当然这并没有困扰到我，我只是认为在建立新的防范措施上这些经验会更有用。
This is useful when debugging or when you want a catch-all message handler as the last message handler .
该选项可用于调试或希望将一个捕获所有消息的处理程序作为最后的消息处理程序的情况。
All of them are useful when used in the right context.
所有这些都会在特定的情境下有用处。
They should admit that rating agencies, for all their recent failings, may perform a useful function when they slap a junk rating on a country's debt.
他们也必定会承认，已经犯下许多错误的评级机构，对于一国的债务给予垃圾级的评级，可能更能产生积极意义。
This can be very useful when all they are wearing is a swimsuit.
当他们身上穿的只有泳衣时，这可以是非常有用的。
In theory, it was going to be really useful when I switched, but I seem to fight it all of the time.
从理论上讲，这将是真正有用的，当我开机，但我似乎豁出去了所有的时间。
This is also useful for ensuring all your units are facing the right way when they get to their ordered location.
这也对确保你所有单位都到达指定位置很有帮助。
This is also useful for ensuring all your units are facing the right way when they get to their ordered location.
这也对确保你所有单位都到达指定位置很有帮助。
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