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[期刊论文] 作者:XU XIAOQUAN,Liu Yingming, 来源:数学年刊B辑 年份:2004
In this paper the classical theorem of Zareckii about regular relations is generalized and an intrinsic characterization of regularity is obtained. Based on the...
[期刊论文] 作者:Songzi Zhao,Xiaoquan Qi, 来源:植物学报(英文版) 年份:2004
Interactions between plants and microbes result in plant disease and symbiosis. The former causes considerable economic damage in modern agriculture, while the...
[期刊论文] 作者:YANG Sheng,Lu Xiaoquan,XUE Zho, 来源:稀有金属 年份:2004
A differential pulse voltammetric method was developed for the sensitive and selective determination of Cu(Ⅱ) at 4-methoxy-2,6-bis(3,5-dimethylpyrazoyl)-1,3,5-...
[期刊论文] 作者:Li Li, 来源:中国西部科技 年份:2004
In the unlicensed 2.4GHz ISM band,there is not only IEEE 802.11 wireless systems being used,but also some other devices,such as residential microwave oven,Bluet...
[期刊论文] 作者:Li Li, 来源:NATION 年份:2004
On April 16,Xinhua News Agency released a set of draft guidelines outlining future reforms of public institutions for feedback about one year after a similar dr...
[期刊论文] 作者:Li Li, 来源:中国地质大学学报 年份:2004
The dislocation structure in magnetron sputtered c-textured YBCO films deposited on (100)SrTiO3 substrates consists of vertical (//c axis) screw dislocation for...
[期刊论文] 作者:Li Li, 来源:自然科学进展(英文版) 年份:2004
This paper reports recent studies of the rheological and viscoelastic properties of minerals at mantle pressure and temperature using Deformation multi-anvil ap...
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
More than two decades ago,Zhang Kun,a 65-year-old businessman and former teacher in Dongguan City,Guangdong Province,embarked on a philanthropic joey to help po...
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
[期刊论文] 作者:Li Li, 来源:北京周报(英文版) 年份:2004
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