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时间:2018-04-08
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1、北京毕业论文外文翻译公司翻译报价手-机:【131-1089-3071】精诚翻译公司全网最低5元百字起(市场价格10元,比传统翻译机构低40%左右,互联网+时代,省去中间的环节,价格低于翻译行业任何家翻译机构,5年经验保证,首推先翻译后付费模式,无效免单,免费试译,免费修改,为很多的大型外企和国企翻译过许多专业文件!五周年庆,五折优惠中,可以通过以上方式咨询!Whenitcomestothethree-horneddinosaurcalledtheTriceratops,scienceisshowingtheancientcreaturesmighthavebeenal
2、ittlemorecomplexthanwethought.Infact,theirteethwerefarmoreintricatethananyreptileormammallivingtoday.BiologicalScienceProfessorGregoryEricksonandamultiuniversityteamcomposedofengineersandpaleontologistscontentthattheTriceratopsdevelopedteeththatcouldfinelyslicethroughdensematerialgiving
3、themaricherandmorevarieddietthanmodern-dayreptiles.EricksonandtheteamoutlinedthefindingsoftheirstudyinthejournalScienceAdvances.Today,reptilianteethareconstructedinsuchawaythattheyareusedmostlyforseizingfood--whetherplantoranimal--andthencrushingit.Theteethdonotocclude--orcometogether--
4、likethoseofmammals.Inessencetheycan'tchew.Theteethofmostherbivorousmammalsselfwearwithusetocreatecomplexfilesurfacesformincingplants."It'sjustbeenassumedthatdinosaursdidn'tdothingslikemammals,butinsomeways,they'reactuallymorecomplex,"Ericksonsaid.Erickson,whohasbeenstudyingtheevolutiono
5、fdinosaursforyears,becameinterestedinlookingatdinosaurs'teethseveralyearsagoandsuspectedthattheyhadsomeuniqueproperties.But,thetechnologytoreallydiscoverwhattheywerecapableofdidnotexist.
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