Online Recommender System is an important aspect of EC system.
在线推荐系统提供购物导航服务，是提高电子商务系统性能的重要方面。
参考来源 - 期刊学术社区ASPECT and CHARACTER should be studied as a continuity, and not as two completely independent systems.
体态与体性应作为一个连续体而不是完全独立的两个系统来研究。
参考来源 - 英语动词体的认知研究The vertical distribution of forest vegetation can be analyzed by extracting terrain elevation, slope and aspect.
通过提取地形的海拔、坡度、坡向特征因子，分析森林植被的垂直分布。
参考来源 - 新疆阜康地区森林资源与环境的空间分析Data of surface gradient(slope) and orientation(aspect) and shading by adjacent features is derived from digital elevation model. In this paper a new arithmetic of shading is put forward.
利用数字高程模型的高程数据计算坡度、坡向、地形遮蔽等地形因子，提出了一种地形遮蔽的新算法。
参考来源 - 基于GIS的太阳辐射模型及其实现·2,447,543篇论文数据，部分数据来源于NoteExpress
N-COUNT An aspect of something is one of the parts of its character or nature. 方面
Climate and weather affect every aspect of our lives.
气候和天气影响我们生活的每个方面。
He was interested in all aspects of the work here.
他对这里工作的各方面都感兴趣。
N-COUNT The aspect of a building or window is the direction in which it faces. (建筑物或窗子的) 朝向 [正式]
The house had a southwest aspect.
这房子为西南朝向。
A significant limitation of SPECT is its poor resolution (about 1 cm) compared to that of MRI.
对SPECT的一个明显的局限性是其分辨率较低(约1厘米)相比，磁共振成像。
Purpose:This paper mainly introduced a stereotactic localization method for brain SPECT imaging.
目的：本文主要介绍SPECT脑显像的一种立体定位方法。
Proponents are confident that the addition of CT will provide a new springboard for SPECT in nuclear cardiology as well as other functional studies, revitalizing traditional nuclear medicine.
支持者认为SPECT-CT能成为核医心脏和其他功能影像检查的一个新的起跳板，给传统的核医学增加活力。
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