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Interference and grinding characteristics in ultra-precision grinding of thin-walled complex structu
[期刊论文] 作者：Tingzhang WANG,Henan LIU,Chunya WU,Jian CHEN,Mingjun CHEN,
来源：中国航空学报（英文版） 年份：2021
As for ultra-precision grinding of difficult-to-process thin-walled complex components with ball-end grinding wheels,interference is easy to occur.According to...
Urban-rural disparities in mild cognitive impairment and its functional subtypes among community-dwe
[期刊论文] 作者：Dan Liu,Lin Li,Lina An,Guirong Cheng,Cong Chen,Mingjun Zou,Bo Zhang,Xuguang Gan,Lang Xu,Yangming Ou,Qingming,
来源：综合精神医学 年份：2021
Background Substantial variations in the prevalences of mild cognitive impairment(MCI)and its subtypes have been reported,although mostly in geographically defined developed countries and regions.Less is known about MCI and its subtypes in ......
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