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polymeric dragreduction
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polymeric dragreduction
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剪切流变
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polymeric dragreduction
高分子减阻
在流体输送时通过添加高分子聚合物,减小流体流经固体表面时由于分子间的相互作用而产生的流体摩擦阻力,从而提高流量、降低能耗等的一种方法。所添加的高分子聚合物称为高分子减阻剂。
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Folk Ensemble Music Yinyue Hui in Qujiaying Gu'an county, Hebei province
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Folk Literature and Art Quarterly
folk literature of Chinese minority nationalities
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Folk Museum of Dingcun Village in Linfen
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folk music society Chui Ge Hui in Ziwei village of Ding county, Hebei province
Folk Music Society Qingyin Hui in Chengde city, Hebei province
folk narrative long song
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Folk Song of States
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