The conceptual modeling elements and mutual relations between them are discussed and some key technical problems are identified in the development of feature based temporal - spatial data models.
讨论了基于特征的概念模型要素及相互关系；提出了基于特征的时空数据模型所面临的关键技术。
This paper introduces three key elements of technical risks and disputes arisen by them. It also gives some Suggestions in order to keep technical permission part form abusing force.
本文介绍了技术风险不可抗力包括的三个要件，及其比较容易引起的争议，并为防止技术许可方滥用不可抗力提供了一些参考性的意见。
This paper introduces three key elements of technical risks and disputes arisen by them. It also gives some Suggestions in order to keep technical permission part form abusing force.
本文介绍了技术风险不可抗力包括的三个要件，及其比较容易引起的争议，并为防止技术许可方滥用不可抗力提供了一些参考性的意见。
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