Extracting heat from very hot, dry rocks presents a more difficult problem: the rocks must be fractured to permit the circulation of water, and the water must be provided artificially.
从极热的而干燥的岩石中提取热量，暴露出了一个更加困难的问题：必须击碎岩石以保证水的循环，而水必须是人工提供的。
It's such a difficult problem that I have to dom uch to work it out.
这是一道如此难解的题，以致我得费很大力气才能把它做出来。
If a problem can be solved by money alone, it is not really a difficult problem.
如果仅仅用金钱就可解决一个问题，那么这不是一个真正困难的问题。
Here's how to view this as an antipattern: I've started with a difficult problem.
下面是在反模式中考虑这个问题的方式：我从一个很难的问题开始。
The field of aesthetics presents an especially difficult problem to the historian.
美学领域向历史学家提出了一个格外困难的问题。
SAN DIEGO — One way to get noticed as a scientist is to tackle a really difficult problem.
美国圣地亚哥（SAN DIEGO）——作为科学家使自己被别人所知的一个方法就是去解决一个真正困难的问题。
Not only is this problem very important, but it is a difficult problem to be solved at once.
这个问题不仅十分重要，而且还是一个马上要解决的困难问题。
If the prosthesis is loose and there is radiological evidence of osteolysis is a difficult problem.
如果假体松动，有放射学表现的骨溶解，这将是一个困难的问题。
A difficult problem could be good for a designer, but a fickle client or unreliable materials would not be.
一个困难的问题对一个设计者来说是好的，但是一个多变的客户和不可靠的材料不是。
The most difficult problem in vector-vector data fusion is the multi-source and inconsistency of data.
矢量空间数据融合中最难的问题来自于数据的多源性、不一致性。
Limited from detecting means, the threat estimation on air targets is a difficult problem to submarine underwater.
由于受探测手段的限制，水下潜艇对空中目标的威胁评估一直是研究难题。
A much more difficult problem for the retailer is to assure that replenishments for the back room are delivered in time.
但是，零售商还有一个更难解决的问题：如何确保补充的产品及时交付到仓库？
The other, “the most important and difficult problem of academia in Italy”, was its “non-transparent recruitment system”.
而另外一个“意大利学术界最主要也最难的问题”是它的“不透明的招聘体系”。
This shows how, by very simple means, in a family constellation we can reach a solution for such a difficult problem.
这个案例以非常简单的方式告诉我们，在一个家庭系统中我们可以为这样的难题找到一个解决方案。
Together, the changes are solving what once seemed the most difficult problem facing the future of humanity: growing population.
这种改变也解决了之前看起来相当严重的人类难题：不断膨胀的人口。
The conversion of mass crime is a difficult problem in judicatory practice, as it does not bring to bear accurate theory to guide.
聚众犯罪的转化犯在司法实践中是一个较为疑难的问题，主要原因是没有运用正确的理论加以指导。
When small fish face an extremely difficult problem-an attack, say, from several predators at once-they deal with it by forming a school.
当小鱼面临极其困难的问题时，比如说，突然遭到几个捕食者的袭击，他们会立刻形成鱼群。
Obviously this is a difficult problem, but the incentive to solve it is very big. The main approaches fall into the following categories.
显然，这是一个很困难的问题，但是解决它的激励也很大。
Building parsers by hand can be quicker and easier for smaller languages, but it tends to become a difficult problem as the language gets larger.
对于较小型的语言，手工构建解析器可能更快速、更容易，但是当语言变得更庞大时，这就成了一个困难的问题。
In other words, if you spend energy trying to resist a fragrant chocolate chip cookie, you'll have less energy left over to solve a difficult problem.
也就是说，如果你花费精力去抵制一块巧克力饼干的诱惑，那么解决难题的精力就会减少。
When confronted by a difficult problem you can solve it more easily by reducing it to the question "how would adventure star Indiana Jones handle this?"
碰到难题时，把它简化成这样一个问题——“惊险片明星印第安那·琼斯会怎样处理？” --你就能比较容易地解决它了。
As part of their conversations with Afghan women, the Marines are to ask basic questions, including what is the most difficult problem facing the village.
作为与阿富汗妇女的谈话的一部分，女海军陆战队员问的基本问题，包括村里面临的最困难的问题是什么。
You may turn to food for comfort - consciously or unconsciously - when you're facing a difficult problem, stress or just looking to keep yourself occupied.
当你面对困难的问题、压力或者只是让自己忙着，你可能会自觉地或不自觉地借助于食物寻求慰藉。
Clearly, Alvin had a difficult problem to solve, but rather than being able to sense any forward progress, he was beaten down and made to feel incompetent.
很显然，Alvin面临着一个难题，但是在还没有体会到任何进步之前，他就已经被困难打倒而且我们可以感到他的无助和自卑。
This controversy is for good reason: Namespaces solve a difficult problem and are one of many approaches to solving this problem, each of which has its pros and cons.
争议的理由很充分：名称空间解决了一种困难问题，但只是解决这种问题的方法之一，每种方法各有长短。
The difficult problem that still awaits an answer is how to get higher yields from food crops without a commensurate rise in the loss of water through evapotranspiration.
困难的问题是，仍在等待怎样获得与蒸散而损失的水相对应的食用作物产出。
"Defense against malicious adversaries is an inherently difficult problem," said Partha Pal, APS principal investigator at Raytheon BBN Technologies, in the statement.
雷声bbn技术公司的首席研究员ParthaPal在声明中说：“对恶意对手的防御注定是一项艰巨的任务。”
"Defense against malicious adversaries is an inherently difficult problem," said Partha Pal, APS principal investigator at Raytheon BBN Technologies, in the statement.
雷声bbn技术公司的首席研究员ParthaPal在声明中说：“对恶意对手的防御注定是一项艰巨的任务。”
应用推荐