简介:摘要:对于投用较早的装置,早期双端支撑机泵大多采用分体式轴承箱,运行初期机泵状态良好,但随着运行周期变长,检修次数增多。轴承体各部位间隙及轴承体刚度很难再保证机泵运行的要求。对轴承体进行改造,保证机泵整体的刚度要求,避免重复维修,确保机泵平稳运行具有重大意义。
简介:SodiumdithioniteinitiatedsulfinatodehalogenationofBrCF2CF2Risstudied.
简介:AconstructiveproofisgivenfortheinversionformulaforzonalfunctionsonSL(2,R).AconcretelyconstructedsequenceofzonalfunctionsareprovedtosatisfytheinversionformulaobtaAnedbyHarish-Chandraforcompactsupportedinfinitelydifferentiablezonalfunctfons.Makinguseofthepropertyofthissequencesomehowsimilartothatofapproximationkernels,theauthorndeducethattheinversionformulaistrueforcontinuouszonalfunctiotmon8L(2,R)somecondition.Theclassicalresultcanbeviewedasacorollaryoftheresultshere.