题目内容

将滤浆冷却可提高过滤速率。

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YourdatabaseisopenandrunninginARCHIVELOGmode.YoutakeRMANfullbackupseverySundaynight.OnMondaymorning,whilequeryingtheuser1.employeestable,youreceivethefollowingerrormessage:
01578:ORACLEdatablockcorrupted(file#5,block#51)ORA-01110:datafile5:
’/u01/app/oracle/oradata/orcl/example01.dbf’
Youneedtorectifythecorruptionwhileensuringthefollowing:Thedatafileshouldremainonline.
Themeantimetorecover(MTTR)shouldbeminimal.
Youarenotusingabackupcontrolfile,andallthearchivedlogsareaccessible.
Whichoptionwouldyouchoose?()

板框压滤机的过滤时间等于其它辅助操作时间总和时,其生产能力最大。

离心分离因数越大其分离能力越强。

降尘室的生产能力不仅与降尘室的宽度和长度有关,而且与降尘室的高度有关。

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