简介：

简介：ＣｈｉｎａａｔｔｈｅＴｕｒｎｏｆｔｈｅＣｅｎｔｕｒｙＣｈｉｎａ＇５ｒａｐｉｄｅｃｏｎｏｍｉｃｇｒｏｗｔｈｉｎｔｈｅｐａｓｔｙｅａｒｓｈａｓｃａｕｇｈｔｔｈｅａｔｔｅｎｔｉｏｎｏｆｔｈｅｗｏｒｌｄ．ＴｈｉｓｙｅａｒｕｓｈｅｒｓｉｎＣｈｉｎａ＇ｓＮｉｎｔ...

简介：OneofthethingsIalwaysbelieveisthatnomatterhowbadsomethingis,youcantakesomethingpositiveoutofit.TheonetimeIwasn'tsureofthatwasonSeptember11.

简介：ＦｅａｔｕｒｅｓｏｆｔｈｅＩｎｔｅｒｎａｔｉｏｎａｌＳｉｔｕａｔｉｏｎａｔｔｈｅＴｕｒｎｏｆｔｈｅＣｅｎｔｕｒｙｂｙＷｕＸｉｎｇｔａｎｇＡｎｅｗｃｅｎｔｕｒｙｉｓａｐｐｒｏａｃｈｉｎｇａｎｄｗｅａｒｅａｔｔｈｅｔｕｒｎｏｆｔｈｅｃｅｎｔｕｒｙ．Ａｔｔ...

简介：含动词turn的短语有数十条之多，而且每条短语意义繁杂。现将高中阶段应掌握的turn短语及其意义归纳如下：

简介：JiaXiangdejustdidn’tknowwhattodowhen,fiveyearsago,helosthisjobatastate-ownedchemicalfactory.Hewasgivenmi"unemploymentpay"of200yuan(US$24.1)permonthforhisfamilyofseven."Mywilehadnojobandlifewasreallyhardforus,"herecalls."IhadthoughtIwouldbedoneforuntilthegovernmentsteppedintohelp.Igotapettyloanfromthegovernment,andthathashelpedmeturnanewleafinlife."

简介：<正>’Itisanoteworthyanniversary,notleastsinceSwedenwasthefirstWesterncountrytoestablishrelationswiththePeople’sRepublicofChina,’saidBorjeLjunggren,Sweden’sambassadortoChina.

简介：<正>IneverexpectedtoridearetiredracehorseinBeijingonSaturdays.ButinthiscityofunknownequestrianquantitiesIhavefoundsomeofthebesthorse-ridingtrainingandfacilitiesI’veeverencountered,anywhere.MostoftheinstructorscomefromInnerMongolia,hometomostofChina’shorseculture.ThehorsesmeanwhilehavebeenbroughtherefromstablesinHongKongandAustralia.Manyareretiredracehorses,mild-mannered,gentlebeastswhotakestudentsgentlyaroundthetrainingpens.Lessonsaren’tcheapbyanystandardsbutthequal-

简介：Thelocalpressuredistributionsandresistancecoefficients(f1andf2)throughthesharp180degturninarelativelyshort(L/De=4)two-passsmoothandrib-roughenedchannelwereinvestigatedforaReynoldsnumberrangeof1.0×10^3,9.0×10^3.Theribpitch-to-herghtratios(p/e)were5,10,and20,Theribheight-to-hydraulicdiamterratios(e/De)were0.025,0.050and0.10,andtheribanglesofattack(a)were90,45,60,-45,and-60deg.Ridswereinstallednotonlyinbeforeandafterturnregionsbutalsointurnregion.TheresultsshowthatresistancecoefficientsremainapproximatelyconstantwhenReynoldsnumberismorethan3.0×10^4,Theeffectsoftheribconfiguration(ribspacing,ribheight,andriborientation)ontheinletstraightductresistancecoefficient(f2)weresignificant,however,theireffectsontheoverallresistancecoefficient(f1)weredilutedbythesharp-180turn.Forthisrelativelyshortchannel(L/De=4),theoverallresistancecoefficient(f1)wasgreatlyaffectedbythesharpturn.Correlationsfortheoverallresistance(f1)andinletstraightductresistancecoefficient(f2)arepresented.

简介：Wehavefabricatedatop-emittingorganiclight-emittingdeviceonsiliconsubstratewithhighyellowluminancebasedon5,6,11,12-tetraphenylnaphthacenesub-monolayer.Itconsistsofathinlayerofhighlyconductivesilverasthesemitransparentcathodeandsurfaced-modifiedAgastheanode.Thedeviceturnsonat3Vwiththeluminanceof8.4cd/m^2.Themaximumcurrentefficiencyis1.3cd/Aat6Vandtheluminancereaches14790cd/m^2at14V.Theperformanceofthedeviceisexcellentintop-emittingorganiclight-emittingdevicesaccordingtoourknowledge.