山西孝义市京山耐火材料公司微孔高强高隔热轻质耐火材料及重质莫来石生产线的可研报告

山西孝义市京山耐火材料公司微孔高强高隔热轻质耐火材料及重质莫来石生产线的可研报告

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山西孝义市京山耐火材料公司微孔高强高隔热轻质耐火材料及重质莫来石生产线的可研报告_第1页
山西孝义市京山耐火材料公司微孔高强高隔热轻质耐火材料及重质莫来石生产线的可研报告_第2页
山西孝义市京山耐火材料公司微孔高强高隔热轻质耐火材料及重质莫来石生产线的可研报告_第3页
山西孝义市京山耐火材料公司微孔高强高隔热轻质耐火材料及重质莫来石生产线的可研报告_第4页
山西孝义市京山耐火材料公司微孔高强高隔热轻质耐火材料及重质莫来石生产线的可研报告_第5页
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1、tunnelshouldbebuilt.Thiswouldsolvetheproblemofventilation,forifatrainenteredthistunnel,itwoulddrawinfreshairbehindit.Forty-twoyearslateratunnelwasactuallybegun.If,atthetime,theBritishhadnotfearedinvasion,itwouldhavebeencompleted.Recently,therehasagainbeengreatinterestintheideaofaChannelTunnel.

2、Ifitisbuilt,itwillconnectBritaintoEuropeforthefirsttimeinhistory.   Lesson65Jumboversusthepolice小象对警察 LastChristmas,thecircusowner,JimmyGates,decidedtotakesomepresentstoachildren'shospital.DressedupasFatherChristmasandaccompaniedbya'guardofhonour'ofsixprettygirls,hesetoffdownthemainstreetofthe

3、cityridingababyelephantcalledJumbo.He,shouldhaveknownthatthepolicewouldneverallowthissortofthing.ApolicemanapproachedJimmyandtoldhimheoughttohavegonealongaside-streetasJumbowasholdingupthetraffic.ThoughJimmyagreedtogoatonce,Jumborefusedtomove.Fifteenpolicemenhadtopushveryhardtogethimoffthemain

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5、titsdesigner,MrJohnWimpenny,isfindingitdifficulttogetitofftheground.Thereasonforthisisthatthisplaneisalsoabicycle.Itspilothastopedalhardtogetitintotheair.AfterMrWimpennyhadtheplanebuilt,itwastestedthoroughly.In1961,itwasthefirstman-poweredaircrafttoflyhalfamile.Whilebeingflownbyachampionamateu

6、rcyclistin1963,theplanecrashedonanairfield.Sincethen,MrWimpennyhashaditrebuilt.Hehashadthelengthofthewingsincreasedsothattheynowmeasure93feet--almostaslongasthoseofaDakota.Manypeoplehaveshowninterestinthisnewandunusualsport.Butthoughaircyclistsmaylearnhowtoflyovershortdistances,andmay,eventual

7、ly,evengetacrosstheEnglishChannel,itisdoubtfulwhethertheywillevercycleacrosstheAtlantic.   Lesson67Volcanoes火山 HarounTazieffthePolishscientist,hasspenthislife-timestudyingactivevolcanoesanddeepcavesinallpartsoftheworld.In1948,hewenttola

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