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[期刊论文] 作者:LIU Wenbao,
来源:地球空间信息科学学报:英文版 年份:2001
To improve the current GIS functions in describing geographic objects w ith fuzziness,this paper begins with a discussion on the distance measure of sp atial ob...
Frameworks for Generalization Constraints and Operations Based o n Object_oriented Data Structure in
[期刊论文] 作者:LIU Yaolin,
来源:地球空间信息科学学报:英文版 年份:2001
The constraints and the operations play an important role in database generaliza tion.They guide and govern database generalization.The constraints are translat...
[期刊论文] 作者:LIU Jiyu,
来源:地球空间信息科学学报:英文版 年份:2000
GPS 运动学的搬运人阶段大小能被用来决定七个尺寸状态和一个动的搬运人的三个态度参数,例如一架飞机或一只 lowearth 轨道太空船,一条天线在上被安装收到 GPS 信号。自从 1994...
[期刊论文] 作者:LIU Jingnan,
来源:地球空间信息科学学报:英文版 年份:2001
Depending on analyzing the abuse of equivalent weights,a set of self-cont ained theory system on robust estimation based on equivalent variance-covariance is es...
[期刊论文] 作者:Liu Hao,
来源:China Today 年份:2000
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[期刊论文] 作者:Gang LIU,
来源:材料科学技术:英文版 年份:2001
A numerical simulation on the rotary forging process of a flange is conducted by three-dimensional rigid-plastic finite element method. The states of stress and...
[期刊论文] 作者:Liu Muyu,
来源:武汉理工大学学报:材料科学英文版 年份:1999
The slope stability is affected by multiple factors. The comprehensive evaluation of the slope stability is a complicate problem. The principles of extension th...
[期刊论文] 作者:Weiping LIU,
来源:材料科学技术:英文版 年份:2001
Combustion synthesis is used as a joining technology to join Ni-based superalloys with in-situ synthesized NiAl filler. The synthesis mechanism is discussed. Th...
[期刊论文] 作者:Tong LIU,
来源:材料科学技术:英文版 年份:2001
Feature modeler of welded structure provides both 3D-geographical and non-geographical features for the off-line programming of arc welded robot. Welded structu...
[期刊论文] 作者:Zhihua LIU,
来源:材料科学技术:英文版 年份:2001
In this paper, technology margin experiment of hollow cathode fusion arc welding (FAW) and penetrating arc welding (PAW) is presented in detail. The advantages...
[期刊论文] 作者:Chung-Ping Liu,
来源:材料科学技术学报:英文版 年份:2000
轴的磁性的力量,从转子磁铁和定子 slotted 由复杂流动连接分发导致了,被不同相对高度构造并且由 3D 计算了有限元素方法(女性) 交通为一支 DVD 锭子分析动态特征。轴的磁性的...
[期刊论文] 作者:LIU An-qing,
来源:国际设备工程与管理:英文版 年份:2001
In this paper, the oriented matrix analysis (OMA) method of system reliability has been discussed. OMA uses a oriented fault graph instead of a traditional faul...
[期刊论文] 作者:WU Liu,
来源:中国科学:F辑英文版 年份:2001
Theoretical analysis and numerical results for typical examples are presented for three-layer planar waveguides with nonlinear claddings to find the appropriate...
[期刊论文] 作者:by Liu Shibing,
来源:北京电影学院学报 年份:1991
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[期刊论文] 作者:Liu Hongyan,
来源:China Population Today 年份:2000
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[期刊论文] 作者:LIU Hsing-Jang,
来源:高等学校化学研究:英文版 年份:2001
Clerodane diterpenoids are widely distributed in nature and constitute one of the largest and, yet, still rapidly growing family of secondary metabolites. Of th...
[期刊论文] 作者:LIU LingKang,
来源:高等学校化学研究:英文版 年份:2001
Electron-transfer chain (ETC) catalysis belongs to the family of chain reactions where the electron is the catalyst. The ETC mechanism could be initiated by che...
[期刊论文] 作者:LIU XiuHui,
来源:高等学校化学研究:英文版 年份:2001
As a typical oscillating chemical reaction, studies of the Belousov-Zhabotinsky reaction have not only yielded important results to provide insights to many kin...
Magnetic, Geochemical and Mineralogical Charac-teristics of Soils in Qiangtang Basin, Tibet, China:I
[期刊论文] 作者:Liu Qingsheng,
来源:中国地质大学学报:英文版 年份:2001
The alteration of iron-bearing minerals induced by hydrocarbon microseepage above oil/gas reservoirs has been evaluated using measurements of soil magnetic susc...
[期刊论文] 作者:LIU HAO,
来源:今日中国:英文版 年份:2000
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