The composition and geographic distribution of climbing plants are important aspects of ecological study, but research on temperate climbing plants is relatively limited.
藤本植物的组成及其地理分布是藤本植物生态学研究的重要内容之一，但对温带藤本植物的相关研究相对缺乏。
The study on 3 D Terrain VR is a hot topic in Computer Graphic, Geographic Information System and Digital Photogrammetry.
三维地形虚拟现实技术是当前计算机图形学、地理信息系统和数字摄影测量技术研究的热点问题。
But, for the geographic clustering of creative industries, there lacks further study on its forming process characteristics and its forming factors.
但是对于创意产业地理集聚这一现象的形成过程的特点和形成因素并没有很深入的理论探讨。
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