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1、小学生必背古诗70首1、江南汉乐府江南可采莲，莲叶何田田。鱼戏莲叶间。鱼戏莲叶东，鱼戏莲叶西。鱼戏莲叶南，鱼戏莲叶北。2、敕(chì)勒(lè)歌敕勒川，阴山下，天似穹(qióng)庐，笼盖四野。天苍苍，野茫茫，风吹草低见牛羊。3、咏鹅鹅，鹅，鹅，曲项向天歌。白毛浮绿水，红掌拨清波4、风（唐）李峤(qiáo)解落三秋叶，能开二月花。过江千尺浪，入竹万竿斜。5、咏柳（唐）贺知章碧玉妆成一树高，万条垂下绿丝绦(tāo)。不知细叶谁裁(cái)出，二月春风似剪刀。temperaturepipingandequipment,
2、avoidoilpipeline,avoidingvibrationequipment,principlesofconstructionofbeautifulandneateasytoinstall.5.1.5.2fromfieldinstrumentationandvalvesfieldjunctionboxestothesinglelineslotcableusingpipe,220VACpowercordshallbefullpipelaying,indoorcoaxialcablesconcealedando
3、utdoorwearburied.5.1.5.3bendingcoldbendingmethodshouldbeusedtoprotectpipe,bendingangleshouldnotbelessthan900,whenwearingnon-armouredcableandlaid,bendradiusshouldnotbelessthan6timesthepipediameter,whenwhilewearingarmoredcableandconcealed,bendradiusshouldnotbeles
4、sthan10timesthepipediameter.Bendprotectiontubethereshouldbenodents,cracks,singleright-angledbendprotectiontubeshouldnotbemorethantwo.5.1.5.4betweenprotectivetubeandbetweenprotectivetubeandconnector,threadedconnectionsshouldbeused,ittubeendscrewthreadlengthshoul
5、dnotbelessthan1/2ofthefitting,andensurestheelectricalconnection.5.1.5.5protectiontubeshouldlineup,...5.1.75.1.7.1checktubingforpressurepipinglayingpipe,components,materialsandspecificationsmeetthedesignrequirements,andhavequalitycertificates,beforelayingshouldb
6、eclearedbyweldingandbendingtheweldingslag,rust,chiporaforeignbody,andpreservativetreatments.5.1.7.2inpressurepipingweldingweldermusthaveavalidweldercertificate.5.1.7.3tubingundertheconditionstomeetmeasurementrequirementsshouldbeasshortaspossible,Generallengthsh
7、ouldnotbemorethan15m,pipebendingcoldbending,cuttingmachine,minimizingbendingandcross,andthereshallbenosharpandcomplexbending,bendingradiusofnotlessthan3timesthepipediameter.5.1.7.4pipeandprocessequipment,piping,orbuildingsurfacedistanceisgreaterthan50mm,notbela
8、idparalleltotheoil,combustible,explosive6、凉州词（唐）王之焕黄河远上白云间，一片孤城万仞(rèn)山。羌(qiāng)笛何须怨杨柳，春风不度玉门关。7、登鹳(guàn)雀楼（唐）王之焕(huàn)白日依山尽，黄河入海流。欲穷千里目，更上一层楼。8、春晓（唐）孟浩(hào)然春眠不觉晓，处处闻啼鸟。夜来风
