The diagnosis and treatment of pancreatic cancers are still a difficult subject in the medical profession at present.
胰腺癌的诊治目前仍是医学界的难题，血管生成是胰腺癌生长和转移的必要因素。
But these people don't realize that minimalism is a difficult subject to explain because it is so easily misunderstood.
因此，简约的空间设计通常非常含蓄，往往能达到以少胜多、以简胜繁的效果。是个很难阐述清楚地话题，因为它很容易被误解。
The ships now in use sway in the storm and sink, with single function which has become a difficult subject to overcome.
目前人们所使用的船舶，在风浪中摇摆、风暴中沉没、使用功能单一已成为不可避免的难关。
Philosophy is often described as a difficult subject. There are various kinds of difficulty associated with it, some avoidable.
常有人说哲学是很难的一门课。与哲学相关的难处，有各种各样的；有些是可以避免的。
Because video information is heavy, and abundant in content, video effective management and search becomes a difficult subject.
由于视频信息信息量大，内容丰富，使得对其进行有效的管理和检索成为一个困难而又必须解决的课题。
The technology of point target detection in IR image sequences is a difficult subject of information processing in recent years.
红外图像中点目标检测技术是近年来信息处理研究的热点和难点之一。
Perhaps there'll be a valuable learning experience, where someone teaches you about a difficult subject, and the penny finally drops.
或许他们会变成值得学习的经验，有些人会在某些非常难的科目上教导你，最后会破点小财。
The technology of point targets detection in infrared image sequence is a difficult subject of information processing in recent years.
红外图像中点目标的检测技术是近年来信息处理研究的热点和难点之一。
But by thinking constructively about how to broach a difficult subject, you might make it less painful and more productive, for everyone.
但是，通过建设性地去考虑如何提出一个困难话题，你也许为每个人减少了谈话的痛苦，增加了谈话的成果。
It sounds simplistic, but if you know you're going to broach a difficult subject on a particular day, get plenty of sleep and exercise in the period before.
这一条听上去太简单了。如果你知道某一天你将提出困难的话题，那么之前你需要充分睡眠和锻炼。
As an important theoretical question in modern financial management, capital cost has been a difficult subject in teaching both for the teachers and the students.
资金成本作为资金筹集决策的选择标准，是现代财务管理无法回避的一个重大理论问题。 但是，在教学实践中，它又是一个教师难讲、学生难懂的问题。
This is not only a new welcome theory in the administrative law circle, but also a difficult subject needing to handle in the administrative practice and judicial practice.
这是行政法学理论界的新热点，也是行政执法实践和司法审判实践中遇到的亟待解决的问题。
It still is a difficult subject for most drilling engineers to predict and control well path by applying the mechanical analysis of bottom hole assembly and the rock-bit interaction model.
利用下部钻具力学分析和钻头与地层相互作用模型来预测和控制井眼轨道对于大多数钻井作业来说仍是一个难题。
If you are talking about a subject you know well, as I've just advised, prepared, preparing the speech itself should not be too difficult.
如果你正在谈论一个你很熟悉的话题，就像我刚才建议的，做好准备；准备演讲本身应该不是太难。
It's not easy material, and deserves to be read slowly and perhaps a couple times - much like any sophisticated treatise on a difficult but powerful subject.
它不是一个简单的阅读材料，值得用双倍的时间来细读品味——就像阅读那些涉及困难但重要主题的专业论文那样。
Now I want to get into a subject which is quite difficult, and it has to do with change of orbits.
现在我要讲，一个比较难的，和轨道的，变化有关。
In fact, Hayek hailed Strigl's work "for the simplicity and clarity of exposition of a notoriously difficult subject."
事实上，施特里格尔的著作被哈耶克誉为“对出了名的难题的简单而又清晰的论述。”
EVER since climate change became a subject for public discourse, economists have been making life difficult for environmentalists.
自从气候变化成为公众话题以来，经济学家一直在为难环境学家。
It breathes some lifeinto an otherwise serious and difficult subject, giving it a pleasing contrastof facts, advice, and humor.
它以生动的气息阐述了严肃而深奥的话题，熔事实、忠告和幽默于一炉，让它们在对比当中尽显乐趣。
But this is what I discovered: just because a subject is difficult to learn, it does not mean you are not good at it.
但是我发现：仅仅因为一门学科很难学，这并不意味着你在这方面不强。
The wavelet transform has no ability to resist to geometric distortion, so the wavelet domain watermarking resisting to geometric distortion is a very difficult and challenging subject.
小波变换不具有几何不变性，因此，小波域水印对抗几何攻击是一个十分困难和富有挑战性的课题。
Though the confirmation of unconsciousness on methodology is very difficult, it will not be a self-contained subject if unconscious psychology is ignored.
虽然在方法学上证实潜意识很困难，但忽略了潜意识的心理学是不完善的。
FOR a subject that arouses such strong passions, "network neutrality" is fiendishly difficult to pin down.
对于“网络中立性”这一激起无数热情的话题，要想解释清楚是极难的。
Narrow in its place, it is unprecedented that the degree of difficulty of construction technology is great. The deep foundation pit is a highly difficult geotechnical engineering subject.
其场地之狭窄，施工技术难度之大是前所未有的，深基坑工程是一个高难度的岩土工程技术课题。
Operation scheme evaluation is not only an urgent task in today's military field but also a relatively difficult subject.
作战方案评估是当今军事领域一个急需解决又具有相对难度的课题。
This book provides a concise overview of thermodynamics, and is written in a manner which makes the difficult subject matter understandable.
这本书提供热力学的简明的概述，并且被用使难的主要内容可理解的一种方式写。
The iterative guidance method launch vehicle is a synthetical and difficult subject which involves many courses and disciplines. In this paper, some researches are done in this field.
大型运载火箭迭代制导方法是一种涉及面较广、难度较大的课题，本文对其进行了一定研究。
The research of the lightning current's characteristics and lightning protections is a multi-subject of the combination and a very complex and difficult systematic engineering.
雷电流特性的研究与雷电防护，是一个结合多学科的十分复杂困难的系统工程。
The research of the lightning current's characteristics and lightning protections is a multi-subject of the combination and a very complex and difficult systematic engineering.
雷电流特性的研究与雷电防护，是一个结合多学科的十分复杂困难的系统工程。
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