晶粒细小的金属塑性较高,随着晶粒增大,塑性将降低。()
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在轧钢生产中,工作辊表面的硬度不均会造成轧辊的磨损不均。()
在轧制生产过程中,轧件越厚,需要的润滑量越多。()
Afinancialcustomerhasthreedatacentersthatarefourkilometersapart.TheirSAPapplicationdataneedstobekeptsynchronizedwithin10milliseconds.Whichsolutionsatisfiesthecustomer’srecoverytimeobjective()
A. DS8700systemsateachsiterunningMetroMirror
B. DS8700systemsateachsiterunningGlobalMirror
C. DS5300systemsateachsiterunningGlobalMirror
D. XIVsystemsateachsiterunningRemoteMirroring