简介:英语中有一些习语,其名词前用one’s与用sb’s的意义是不同的,择其常见者,介绍如下:1.goone’sway动身,前往gosb’sway事情对某人有利MrBournehospitablyaskedifIweregoinghisway.伯恩先生客气地问我是不是和他一起走。Iwokeuplatethismorning,andthenthetrafficdelayedmeasIcametowork—nothingseemstobegoingmywaytoday.我今天早晨醒得迟了,上班路上又因交通拥挤而耽误了时间,看来今天我没有碰上一件顺心事。2.takeone’splace就座,就位takesb’splace代替某人WhileIwaswondering,atthis,ourschool-mastertookhisplace.当我正为这些情景感到诧异
简介:Anewpolymer,polyzirconoxanesal(PZS),issynthesizedfromthereactionofzirconiumoxychlorideoctahydrate(ZrOCl2-8H2O)withacetylacetone(Hacac)andsalicylalcohol(SA)byone-potprotocol.Thepolymerissolubleincommonorganicsolvents,suchasethanol,methanol,acetone,tetrahydrofuranandchloroform,andexhibitsrheologywithviscosityof100-300mpasat25℃.Thesepropertiesaresuitableforusesinfabricationofceramicmatrixfibercomposites.Pyrolysisofthispolymerat1300℃inargonprovidesnanosizedZrCwithsphericalmorphologyandsizeof20-100nm.
简介:LikeeverylanguageAmericanEnglishisfullofstrangeexpressions,phrasesthatcomefromdaytodaylifeofthepeopleanddevelopintheirownway.Wheredidtheseexpressionscomefrom,andhowdidtheygetintothelanguage?Ourexpressiontodayis'togetone’sgoat'andotherphrasesthatcomefromthegoat.Thegoatisanancientcreaturethathasdonemuckforman,providingmilk,meat,cheese,andothergoodandusefulthings.
简介:BeijingJeepTakesThirtyYearsinOneStepBystaffreporterTANMINTHEFIRSTfour-wheeldeive,cross-countryvehicleintheworld-thejeep-was19...
简介:Theintroductionofdesigneroestrogensasatreatmentmedalityinhormonereplacementinwomenhasinvitedtoconsidertheconceptofcompoundswithselectiveandrogeniceffectsformalehonnonereplacementtherapy.Thefullspectrumoftheactionsoftestosteronemaynotbenecessaryofevenundesiredforcertainindicationsfortestosteronetreatment,Todefineforwhatindicationscertainandrogenicpropertiesaredesiredandundesiredmoreinsightinbasicandrogen(patho)physiologyisrequired.Thereisconvincingevidencethataromatizationofandrogeniccompoundstonestrogensmightbeanadvantageformaintenanceofbonemassanditmightalsomitigatenegativeeffectsofandrogensonbichemicalparametersofcardiovascularrisks:thepotentiallynegativeeffectsofoestmgensonprostatepathologyinageingmenneedsfurtherelucidation.Whiletheroleofdihydro-testosterone(DHT)forthemalesexualdifferentiationandforpubertalsexualmaturationisevident,itsroleinmatureandageingmalesseemslesssignificantormayevenbeharmful.Itis,however,ofnotethatanegativeeffectofDHTonprostatepathophysiolog~iscertainlynotproven.Formalecontraceptionaprogestationalagentwithstrongandrogenicpropertiesmightbeanasset.Formostoftheandrogenicactionsthecriticallevelsofandrogensarenotwellestablished.Thelatterisrelevantsincethelargeamountofandrogenmoleculesrequiredforitsbiologicalactions(ascomparedtooestrogens)isanimpedimentinandrogenreplacementmedalities.Theremayberoomformorebiopotentandrogenssincedeliveryoflargeamountsofandrogenmoleculestothecirculationposesproblemsfurtreatmentmodalities.(AsianJAndro11999Jun;1:21-28)
简介:AnanalysisonthepropertyofSelf-ScalingRankOneUpdate(SSR1)isgiven.Inviewofit,weexplorewhethertheSSR1updatewithoutusingexactlinesearchpossessesthefiniteterminationpropertywhenitisappliedtominimizeapositivedefinitequadraticobjectivefunction.
简介:根据传统的营销学理论,企业营销活动的主要目的是扩大市场份额,企业应围绕4P(产品、价格、促销、渠道)营销因素组合,开展营销活动,尽力扩大市场份额。九十年代初,美国哈佛大学商学院教授赛塞(W.EarlSasserJr.)与雷奇汉(FrederickF.Reichheld)的研究结果表明服务性企业的市场份额对利润并没有什么影响。他们发现:顾客忠诚感较高的服务性企业更能赢利,忠诚的顾客可使服务性企业逐年获得更大利润。在雷奇汉和赛塞的研究基础上,哈佛大学商学院教授赫斯凯特(JamesL.Heskett)、赛塞、施策辛格(LeonardA.Schlesinger)等人于1994年提出了服务利润链管理理
简介:荧光屏上的“R”:当你收看电视节目时,有时电视屏幕上会出现一个“R”标记,还一闪一闪的.它是英文词“Repeat”(重复)的第一个字母.表示“慢动作重播”。电影上的“R”:电影上的“R”是“Restrict”(受限制)的第一个字母。“电影限制级”是指17岁以下的青少年除有家长陪同外,不得观看这种电影。处方笺上的“R”:在医院处方上都印有一个“R”,它的意思是“取下列药”.拉丁文原意是“有求必应。”商标上的“R”:无论在商品或商品厂告上,你会看到一些商品的一角印有一个“R”的标记。这个“R”表示这些商品是经商标注册的。注册商标符号“R”是世界上通用的。图书统一书号上的“R”:在有的图书统一书号后面印有一个“R”和两组数字.这里的“R”表示该图书是少年儿单读物。
简介:摘要: 通过对 Q345R( R- HIC ) 钢的焊接性分析,进行钨极惰性气体保护焊焊的工艺评定试验,经拉伸、冲击、弯曲、抗氢致裂纹 (HIC) 试验,结果表明 Q345R( R- HIC) 钢选用合适的焊接材料和焊接工艺参数 , 采用焊前预热、控制层间温度和焊后热处理等工艺措施,获得了满足 湿
简介:ThispaperreportsthePVTxpropertiesofR22/R152asystemintherangesoftemperaturefrom298.15Kto353.15Kandpressurefrom0.288MPato1.288MPa,SixtysevenPVTxmeasurementsforthreecompositions,i.e.0.2712,0.4094and0.7911molefractionofR22,havebeenmeasuredalong16isotherms.Theuncertaintiesoftemperatureandpressuremeasurementsarelessthan0.01Kand±500Parespectively.ThereliabilityoftheexperimentalmeasurementsisconfirmedbyusingREFPROPprogram,acomputerprogramsuggestedbyMorrisonetal^[4].