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Hybrid finite-discrete element modelling of asperity degradation and gouge grinding during direct sh
[期刊论文] 作者：H. Y. Liu,Haoyu Han,H. M. An,J,
来源：国际煤炭科学技术学报：英文版 年份：2016
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Effect of Lactobacillus rhamnosus GG on microbial flora and immune responses of weaned piglets chall
[会议论文] 作者：H. Y. Liu,T. Lai,J. L.Ma,Y. H. Zhu,J. F. Wang,
来源：中国畜牧兽医学会2008年学术年会暨第一届中国兽医临床大会 年份：2008
Eighteen just weaned barrows at 19 d of age were used to investigate the effectsof feeding Lactobacillus rhamnosus GG(LGG)on the intestinal and fecal microbiotas，intestinamucosal immunity and systemic...
Characteristics of concentrations and chemical compositions for PM2.5 in the region of Beijing, Tian
[会议论文] 作者：H. Y. Liu,
来源：第30届中国气象学会年会 年份：2013
In order to study the temporal and spatial variations of PM2.5 and its chemical compositions in the region of Beijing,Tianjin,and Hebei (BTH),PM2.5 samples were collected at four urban sites in Beijin...
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