Model QZ100K drill was developed by the machinery plant, Changsha Institute of Mining Research, With a China National practical new-type patent.
QZ100K型潜孔钻机由本院机械厂研制，并已获国家实用新型专利。
In this paper, we propose a patent trend mining approach that can identify changes in patent trends without the need for specialist knowledge.
本文提出了一种专利情报趋势的挖掘方法，它能够识别专利趋势的变化而不需要专业知识的帮助。
The proposed approach consists of steps including patent collection, patent indicator calculation, and change mining.
该方法包括三个步骤，分别是专利收集，专利指标的计算，和变化挖掘。
Therefore, the use of text mining technology based on patent map theory can be rightly applied to the profound analysis of some technological area.
因此，利用基于专利地图理论的文本挖掘技术正好适用于对某一技术领域的深层次分析。
Rights: refers to the property rights of superficies, easement, dien, mortgage, mining, fishery, patent, copyright, trademark and others.
四权利：指地上权、地役权、典权、抵押权、矿业权、渔业权、专利权、著作权、商标权及其他财产上之权利。
Rights: refers to the property rights of superficies, easement, dien, mortgage, mining, fishery, patent, copyright, trademark and others.
四权利：指地上权、地役权、典权、抵押权、矿业权、渔业权、专利权、著作权、商标权及其他财产上之权利。
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