粗加工时,一般允许积屑瘤存在;精加工时,由于工件的表面粗糙度要求较小,尺寸精度要求较高,因此必须避免产生积屑瘤。
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创新人才所需的心智模式包括()
A. 内在动机心智
B. 专门领域知识心智
C. 问题发现心智
D. 说服传播心智
Your network contains a file server named Server1 that runs Windows Server 2008 R2.You have a folder named Folder1.You need to ensure that files in Folder1 that are older than 365 days are automatically moved to an archive folder. What should you create from the File Server Resource Manager console?()
A. a file group
B. a file management task
C. a file screen
D. a quota
筛净率受哪些参数的影响?结合本厂实际制丝线哪些部位设置了振筛设置的目的?网孔大小及筛后如何利用?如何提高振筛的筛净率?