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[期刊论文] 作者:LI Wei,YUAN Chun-Ming,
来源:黑龙江科技学院学报 年份:2019
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:YUAN Chun-Ming,PéREZ-DíAZ Sonia,SHEN Li-Yong,
来源:系统科学与复杂性学报(英文版) 年份:2021
The rational ruled surface is a typical modeling surface in computer aided geometric design.A rational ruled surface may have different representations with respective advantages and disadvan-tages.In this paper,the authors revisit the repr......
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