Duringtheperiodfromtheendof1950stotheearly1960s,aseriesofengineeringdisastersof rockmassoccurredoneafteranother,forexample,inDecember1959,thefoundationofthe MalpassetconcretearchdaminFrancefailedandresultedinafloodandabout450peoplewere killed;inOctober1963,alandslideofupstreamofthereservoirofVajontdaminItalygeneratedwave of100metersovertoppedthedamandkilledabout2500peopleofthedownstreamofthedam;in 1960,acoalmineinSouthMrieacollapsedwiththelossof432lives;inourcountry,severalmines, suchasStannaryMiningBureau,Pangushantungstenmine,Dajishantungstenminewereminedin openstoppingmethod,generatedearlyorlatemanydilapidationsoflarge-scalerockmass.These disastersarousedthegalacticattentionofpeopleofrockengineeringworldandtheyjoinedinthestudy ofrockmassmechanics, makingrockmassmechanicseffectivelydeveloped, andformedan engineeringsubjectwithspecificallycategoryofinvestigation.Atthesametime,thecourseofrock mechanicswasarrangedinvariousspecialtiesassociatedwithrockprojectsinoverseasinstitutionsof hig

During the period from the end of 1950s to the early 1960s, a series of engineering disasters of rock mass occurred one after another, for example, in December 1959, the foundation of the Malpasset concrete arch dam in France failed and resulted in a flood and about 450 people were killed ; in October 1963, a landslide of upstream of the reservoir of Vajont dam in Italy generated wave of 100 meters overtopped the dam and killed about 2500 people of the downstream of the dam; in 1960, a coal mine in South Mriea collapsed with the loss of 432 lives; in our country, several mines, such as Stannary Mining Bureau, Pangushan tungsten mine, Dajishan tungsten mine were mined in open stopping method, generated early or late many dilapidations of large-scale rock mass. These disasters aroused the galactic attention of people of rock engineering world and they joined in the study of rock mass mechanics,

Duringtheperiodfromtheendof1950stotheearly1960s,aseriesofengineeringdisastersof rockmassoccurredoneafteranother,forexample,inDecember1959,thefoundationofthe MalpassetconcretearchdaminFrancefailedandresultedinafloodandabout450peoplewere killed;inOctober1963,alandslideofupstreamofthereservoirofVajontdaminItalygeneratedwave of100metersovertoppedthedamandkilledabout2500peopleofthedownstreamofthedam;in1960,acoalmineinSouthMrieacollapsedwiththelossof432lives;inourcountry,severalmines, suchasStannaryMiningBureau,Pangushantungstenmine,Dajishantungstenminewereminedin openstoppingmethod,generatedearlyorlatemanydilapidationsoflarge-scalerockmass.These disastersarousedthegalacticattentionofpeopleofrockengineeringworldandtheyjoinedinthestudy ofrockmassmechanics,makingrockmassmechanicseffectivelydeveloped,andformedanengineeringsubjectwithspecificallycategoryofinvestigation.Atthesametime,thecourseofrock mechanicswasarrangedinvariousspecialtiesassociatedwithrockprojectsinoverseasinstitutionsof higherlearn

《VisualC 开发基于SNMP的网络管理软件(第2版)》讲述了SNMP基础知识和使用VisualC 开发实用网络管理软件的方法与技巧。前几章由ASN.1语言入手，通过分析SNMP相关RFC文档的原始定义，结合实例，详实、深入地讲解了SNMP的原理。后面几章通过几个实例，讲述开发基于SNMP网管软件的方法和的网络知识。《VisualC 开发基于SNMP的网络管理软件(第2版)》是网络管理人员学习SNMP，提高网络管理水平的参考资料，也可供网管软件开发人员参考使用。