简介：之前，我们在WordTown认识了陆上、空中的主要交通工具——bus、train和plane。这次，我们迎来了水上大家族——ship和它的兄弟姐妹!

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简介：你听说过童谣背后的故事吗？你想知道它是怎么来的吗？让我们一起来看看吧!

简介：Rainbow是个神奇的自然现象，它的出现总是给人惊喜和愉悦，所以RainbowBridge将是一个传递惊喜和欢乐的桥梁。通过RainbowBridge，你可以把你的祝福送到每个角落。你的父母、你的老师、你的朋友将在这里接收到你对他们的关心和帮助。

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简介：Rainbow是个神奇的自然现象，它的出现总是给人惊喜和愉悦，所以RainbowBridge将是一个传递惊喜和欢乐的桥梁。

简介：TomwasanAmericanboy.OncehisfatherwantedtogotoChinaforavisit.Beforehestartedout,Tomaskedhim,“AreyougoingtoChinabyplane,bytrainorby”sheep′,father?”

简介：由使用ABAQUS/Explicit，动态过程一近海风汽轮机(任何东西)乘在前面方向的5000DWT的一艘轮船受灾被模仿。任何东西位于一种综合安装技术构造的一个大规模对桶基础。根据模拟结果，在轮船碰撞下面，塑料地区的某个范围出现在桶基础，和具体塑料地区的弧转变结构的一个本地区域以内严重被损坏。因为任何东西塔的压力水平是相对低的，OWT塔是影响的更少。因为短舱和片的团直到400t，大惯性的力量在OWT塔的顶被产生。塔的排水量在在在惯性的力量的行动下面的1s的结束的轮船碰撞的相反的方向。仅仅在轮船鞠躬有次要的损坏。大多数动能被转变成塑料驱散并且由桶基础的弧转变结构吸收了。

简介：Bridgepressureflowscouratclearwaterthresholdconditionisstudiedtheoreticallyandexperimentally.Theflumeexperimentsrevealthatthemeasuredscourprofilesunderabridgearemoreorless2-dimensional;allthemeasuredscourprofilescanbedescribedbytwosimilarityequations,wherethehorizontaldistanceisscaledbythedeckwidthwhilethelocalscourbythemaximumscourdepth;themaximumscourpositionislocatedjustunderthebridgeabout15%deckwidthfromthedownstreamdeckedge;thescourbeginsataboutonedeckwidthupstreamthebridgewhilethedepositionoccursatabout2.5deckwidthsdownstreamthebridge;andthemaximumscourdepthdecreaseswithincreas-ingsedimentsize,butincreaseswithdeckinundation.Thetheoreticalanalysisshowsthat:bridgescourcanbedividedintothreecases,i.e.downstreamunsubmerged,partiallysubmerged,andtotallysubmerged.Fordownstreamunsubmergedflows,themaximumbridgescourdepthisanopen-channelproblemwheretheconventionalmethodsintermsofcriticalvelocityorbedshearstresscanbeapplied;forpartiallyandtotallysubmergedflows,theequilibriummaximumscourdepthcanbedescribedbyascourandaninundationsimilaritynumber,whichhasbeenconfirmedbyexperimentswithtwodecksandtwosedimentsizes.Forapplication,adesignandfieldevaluationprocedurewithexamplesispresented,includingthemaximumscourdepthandscourprofile.

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简介：Indesignphases,expansionjointsarerequiredtohavemovementcapacity,bearingcapacityforstaticanddynamicloading,watertight,lownoiseemissionandtrafficsafety.Onthebasisofthefactthatfailureduetodynamicloadingisthemainreasonfortheobserveddamages,attentionisfocusedonthebearingcapacityfordynamicloadinggovernedbyimpact,becauseitdiffersfromthestaticloading.Inthisstudy,fromtheviewpointofdurability,experimentalstudiesfordynamicbehaviorwereconductedforaluminiumalloyexpansionjointswithperforateddowels.Thevalidityoftheperforateddowelsagainsttrafficimpactloadingwasconfirmedbybothexperimentalandnumericalstudies.

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