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ID:48177091
大小:505.50 KB
页数:16页
时间:2020-01-16
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1、SandStorm&TheEcologicalEnvironmentQuestionHowweshouldtopreventSandStormkeepingtodestroyourhometownanddamageourhealthIntroductionOutlineSummaryIntroductionTheconceptofsandandduststormTheexamplesofthemainsourcesofthesandandduststormonourearthThedescriptionofSandanddustinchinaTheconceptofsandan
2、dduststormdustorsandstorm,alsoknownassandstormsorduststorms.Itisakindofnatrualphenomena,whichcausedbystrongwind.Usually,strongwindblowTerrestrialdustuptotheair,thenmaketheallatmosphereturbid.Dustandsandstormisalwaysoccurinsuchareawhereisshotofwateranditssoilisdryandlooseontheground.Inadditon
3、,thisphenomenaishappenedinwinterandspring.ManyareasofthechineseInlandNorthwest,thenumberofsandstormdaysuptomorethan30daysannual.grasslandregioncommonlyknownasduststormsforRattuswind.TheexamplesofthemainsourcesofthesandandduststormUnitedStatesColoradostateThedesertareasofEgyptandthedesertarea
4、inSudanThenorthwestofchinaOutlineThesandstormscausesandphysicalmechanismsSandstormhazardsandhazardsmethodSandstormcontrolandpreventionmeasuressummaryThankyou
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