1·Division design is one of the principal problems in electronic atlas design.
分幅地图是电子地图集设计中的一个主要问题。
2·And based on above, some principal problems of PVP in China were suggested in paper.
并讨论了中国植物新品种保护急需做的工作。
3·This article expounds the main patterns of the Changjiang river international container transport and the principal problems.
文中阐述了长江国际集装箱运输的主要模式及其存在的主要问题。
4·Some principal problems in the process of research and development is discussed and the development trend in future is also predicted.
研究了其开发研制和应用中的主要问题，并对此材料力学性能研究前景作出了预测。
5·In this paper, the principal problems that found in the process of supervision inspection for pressure pipeline installation were analyzed.
对近年来在压力管道安装监督检验中发现的主要问题进行了讨论和分析。
6·Based on the present state of weathering agency research at home and abroad, principal problems are pointed out in quantitative assessment of rock mass weathering.
在分析国内外岩体风化问题研究现状的基础上，指出了目前岩体风化量化评价存在的主要问题。
7·Then, some principal problems about the construction of Three Gorges Project, particularly, the resettlement, the ecology and the environment of much interest to the public, are discussed.
接着，对有关三峡工程兴建的一些主要问题，特别是大家非常关心的水库移民和生态环境等问题进行了论述。
8·The principal problems with respect to roll working life are cracking at the surface of roll for hot-rolling and that effective zone of quench-hardening of roll for cold-rolling is too narrow.
热轧工作辊的裂纹损坏和冷轧工作辊有效淬硬层过浅是两大突出问题。
9·The present paper analyzes the feasibility and necessity of preschool English education as well as its principal problems. Also it probes into the creation of an English environment for children.
分析在幼儿园实施英语教育的可行性和必要性以及目前开展幼儿英语教育中存在的主要问题，并就幼儿英语环境的创设和实施进行了探讨。
10·This paper focuses on the principal problems in symmetry detection such as the selection of the symmetric points in image and the location of reflectional symmetry axes and deeply research in them.
本论文针对视觉描述中的对称性特征检测的重要问题：图像中的具有对称性特征的点集提取，镜像对称图像的对称轴的定位等问题进行了深入研究。