学科分类
/ 1
5 个结果
  • 简介:ItwasagreatpleasuretobeinbeautifulFlorencewithover7,000geoscientstswhohadregistered.Iwasverymuchinvolvedintwosymposiaongeoethicsandgeoeducation.Theybothwentverywell,butitwasinterestingthatthegroupswhocameweresmall.Inourdiscussionapointofagreementwasthatwemustattackthegreatglobalproblemssuchasvastmalnutritionandthefactthatmostoftheworldpopulationhasproblemswithfoodandwaterresources,notgold!,

  • 标签: IGC 地质研究 学术交流 发展规划 社会需求
  • 简介:WhileattendanceatpreviousIGC'swasremarkable,themorethan7,000earthscientists,exhibitorsandguestswhometinFlorenceforthe32^ndInternationalGeologicalCongresssetanall-timerecordasthehighestnumberofparticipants.Theycamefrom120countriesand75%werenotItalian.Thisproportionofforeignattendeeswasthelargestever;inlinewithatrendofincreasingnonlocalparticipation,ittestifiestothevitalityandinternationalcharacteroftheIGCs.

  • 标签: 地质科学 发展规划 研究方向 服务对象 全球变暖
  • 简介:Severalpre-andpost-congressfieldtripswereorganizedinconnectionwiththe32ndInternationalGeologicalCongressheldinFlorence,Italy,duringAugust,2004.Oneofthese,thePrestigeFieldTrip(PR01--AtraversethroughCentralAsiaranges,fromtheIndianplatetotheKarakorum)lastedfor16daysfrom21Juneto6July.M.GaetanioftheUniversityofMilan(Italy)actedasLeaderandoverallOrganizer,withA.Zanchi(Univ.Milano-Bicocca),M.Q.Jan(Univ.ofPeshawar,Pakistan)andM.N.Chaudhry(PunjabUniversity,Pakistan)asAssociateLeaders.LocallogisticsweretakencareofbytheAdventureTours,Pakistan.

  • 标签: 喜玛拉雅-昆仑山脉 巴基斯坦 地质构造 中生代
  • 简介:利用抽油机上下往复运动动力,通过顶杆、压缩杆、棘爪、棘轮、蜗杆、蜗轮,将往复运动变为圆周运动,使油管挂缓慢的旋转;进入套管环形空间的天然气经油管挂的天然气回收口、阀座中间孔道,当压力增加到1.5~5MPa时,便可顶开阀体,经过回收孔道进入油管孔道内得到回收;油管挂旋转可使测试钢丝绳绕油管中心旋转,可解决钢丝在测试过程中发生缠绕的难题.满足了采油厂对采油井口油管自动旋转、油套气回收、环空测试等多功能井口的需求.

  • 标签: 环空测试 回收 井口装置 油套 应用 研制