As the strength member aramid fiber has been widely used owing to its well known properties, and enhancing its efficiency has become a key problem.
芳纶纤维作为增强元件由于其众所周知的特性越来越受到广泛的使用，如何提高其强度利用率成为研究关键。
This makes the power density of electronic components increase sharply, and whether it can be effectively cooled has become a key problem to be solved.
这促使电子元器件的功率密度急剧升高，能否进行有效地散热已经成为亟待解决的关键问题。
How to ensure a sustainable improvement of teaching quality has become a key problem that every institution of higher learning has to consider and confront.
如何保证教学质量持续提高，已成为每所高校必须考虑和面对的核心问题之一。
With widespread application of XML for exchanging and expressing data on the web, efficient storage and access to XML data have become a key problem to be solved urgently.
随着XML日益普遍应用，如何有效地存储和访问XML文档中的数据已成为亟待解决的关键问题。
Within network collaborative design environment, real-time data exchange and feature semantic conformity become a key problem for collaborative design on semantic feature modeling.
在网络化同步协同设计环境中，如何实现用户系统之间的实时数据交换、维护特征语义的一致性，成为语义特征造型协同设计的关键问题。
However, the resistance of cultivars is easily loss due to the high genetic variability of isolates. Mining durable resistance genes has become a key problem in disease resistant breeding.
然而，由于大豆疫霉菌小种的高度变异性导致品种抗性极易丧失，挖掘持久性抗病基因已成为抗病育种的难题。
When environmental pollution and the absence of energy sources threaten to human's existence, the reused and clean energy sources become a key to solve this problem.
当环境污染和能源危机逐步成为威胁人类生存的头等大事时，人类为解决这一问题，寻求一种可再生的、清洁的能源就显得尤为重要。
As an aggregation of system management and technology, logistics become a key to solve the city traffic problem and a means to improve city competence.
现代物流作为一种系统管理思想、理念和技术的集合体，成为解决城市交通问题的关键，也是城市提升竞争力的有力手段。
Therefore, the stage difference coordination problem with the operation of DC system has become a key issue.
因此，级差配合问题就成为直流系统运行中一个比较关键的问题。
The changes of heat transfer mechanism resulted in that thermal boundary resistance and its optimization design have become a key techniques and science problem in directly cooled technology.
由于传热机理的变化，在固体接触导热中，界面热阻及其最佳热耦合机理成为直接冷却的关键技术和科学问题。
Therefore constructing identity-based public key architecture has become a new approach to solve secure Email problem.
构造基于身份的公钥系统已成为解决电子邮件安全问题的一种新的途径。
Speak up from a certain meaning, the problem of "the farmer work" has already become the key problem that endangers the contemporary Chinese economy to develop the foreground.
从某种意义上讲，“民工荒”的问题，已经成为危及当代中国经济发展前景的关键问题。
To solve the question of lose-land farmer's resettlement has become a key point in the process of dealing with lose-land farmer's problem.
做好失地农民安置工作，已经成为我国妥善处理失地农民问题的关键所在。
To solve the question of lose-land farmer's resettlement has become a key point in the process of dealing with lose-land farmer's problem.
做好失地农民安置工作，已经成为我国妥善处理失地农民问题的关键所在。
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