neutrophils
发表于 2025-3-25 05:02:57
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BILE
发表于 2025-3-25 08:14:00
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博爱家
发表于 2025-3-25 13:05:02
Fatigue Strength of Welded Joints by the Local Strain Method, field close to the weld toe, which is considered to be responsible for the material fatigue damage. A fatigue life curve in terms of local strain amplitude has been found for welded joints made of structural steel under stress ratios from -1 to 0.5. In this work the general validity of this approac
Gudgeon
发表于 2025-3-25 17:33:51
pparent dynamic deficiency in the static demand system, as revealed by positively autocor-related residuals in the estimated system. Later developments of dynamic systems encountered difficulties in introducing dynamics without violating some of the theoretical restrictions of a demand system, in pa
宣称
发表于 2025-3-25 20:16:35
G. Pluvinagelof Bolin of the Agricultural University in Ultuna, Sweden and by Professor Karl Iohan Weckman, of the University of Helsinki, Finland. A pilot study was carried out by Bengt Assarsson, which in 1989 led to a successful application for a research grant from the NKJ (The Nordic Contact Body for Agric
output
发表于 2025-3-26 02:20:29
A. J. Krasowskyrofessor Olof Bolin of the Agricultural University in Ultuna, Sweden and by Professor Karl Iohan Weckman, of the University of Helsinki, Finland. A pilot study was carried out by Bengt Assarsson, which in 1989 led to a successful application for a research grant from the NKJ (The Nordic Contact Body
GRAIN
发表于 2025-3-26 05:10:09
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咆哮
发表于 2025-3-26 12:14:33
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空中
发表于 2025-3-26 13:51:55
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cyanosis
发表于 2025-3-26 20:11:44
L. S. Niu,Q. Y. Hu,W. Wangthe number of potential unobserved heterogeneities increases with the dimension of the data. The chapter examines the properties of least squares type estimators, including theWithin estimator, under different specifications of the error components and different correlation assumptions with the regr