查询词典 principal problem

Due to the existence of the ancient porcelain copies andmodem fakement, work of identification becomes the principal problem of the collection.

这三个方面的基本要求把握好了，无论在物质方面还是精神方面都能从中得到丰厚的回报，而如果把握得不好，往往留下难以挽回的经济损失和无法弥补的心理缺憾。这里概括地从整体上谈谈古代瓷器的鉴定方法。

At the same time, it is really striking that, whatever you might say about the origins of a specific act of terror, what is always seen as the principal problem is that of 'radicalisation' – the problem of people, including in the West, being motivated to engage in these nihilistic forms of destruction.

与此同时，确实引人注目的是，不管你会怎么谈论一种恐怖行为的起因，总被视为主要问题的则是"激进化"的问题——人们受到驱动而从事这些暴力破坏形式的问题。

Our principal problem is lack of time.

我们的主要问题就是缺少时间。

Soil degradation caused by erosion and loss of vegetation is the principal problem to sustainable ecology in the xerothermic regions. Revegetation is considered as the essential process of soil restoration.

植被散失和水土流失导致的土壤退化是影响干热区生态可持续发展的主要问题，植被恢复是修复退化土壤的基本过程。

On the Presuppositions of Group Selectionism DONG Guo-an ( Research Institute of Philosophy, South China Normal University, Guangzhou 510631, China)One principal problem of the debate about level of selection has been the importance of group selection.

关于选择层次的一个主要问题是：群体选择概念在解释诸如利他行为这类性状的进化中是否必要？

The main contributions of this thesis are as follows:(1)To address the problem of kernel parameterσselection and regulation of the decision boundary in SVDD algorithm,this thesis proposes a new kernel parameter optimization method based on the spheral distribution of samples in kernel space and regulation of the decision boundary method based on KPCA(Kernel Principal Component Analysis).

本论文主要以支持向量数据描述(Support Vector Data Description，SVDD)与随机森林(Random Forests，RF)模式识别工具为基础，对流程工业在线故障诊断的若干问题进行研究，其具体内容如下：(1)针对SVDD的核参数σ优化及其决策边界规整问题，提出了基于核样本球形分布的核参数优化方法与基于核主元分析(Kernel Principal ComponentAnalysis，KPCA)的SVDD决策边界规整方法。

Moreover, the discussion of veritism indicates that the principal problem encountered by veritism should be the feature of undersocialization or insufficient socialization besides all the other minor ones, which as a result affects the consequence of social epistemic activity and social justification. This becomes one cause of strengthening its socialization and tending towards to social reliabilism.

此外，对求真主义的论述表明，它除了存在一般理解的困境之外，主要问题在于它的社会化不够，因而影响到社会认识活动和社会确证中的效果，这也成为增强其社会性、走向社会可靠主义的出发点之一。

On the analysis on present status of phosphate fertilizer industry in China, principal problem in the industry and a severe challenge with acceding to WTO are discussed.

介绍我国磷肥工业的发展现状，指出该行业存在的主要问题和入世面临的严峻挑战，提出磷肥工业的发展思路，和面对入世应采取的策略措

In connection with this idea of God there arises the difficult question of the creation, the principal problem of the Cabala and a much-discussed point in Jewish religious philosophy.

结合这一思想，上帝也存在着困难问题，建立后，主要的问题，该cabala和讨论很多的点，犹太宗教哲学。

Stability is the principal problem of analysis and design of systems.

稳定性问题是系统分析与设计的首要问题。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。