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发表于:2017-07-03
Methods:theelectronicgastroscopyandmaxforcettswaterballooncatheterdilatorwereadoptedtodilateesophagealstenosisin86patients.ThelatestresearchevaluatedanewapproachtoPVIinwh...
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发表于:2021-10-25
Icolourthehotairballoongreen.Haveyoueverbeeninahotairballoon?Flyingahotairballoonisfullofchallenges.I'mfrightenedtoflyahot-airballoon.ausuallyopengondolasuspendedfromaho...
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发表于:2017-11-14
Anti-jammingdesignofsensorsignalsamplingsystemincaptiveballoonArticle2balloonsasmentionedintheseMeasuresshallincludeunmannedfreeballoonsandcaptiveballoons....
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发表于:2017-06-13
Airdistendsaballoon.Theballoonwentaloft.Thisismyballoonmoney.Theballoonwilldilatewithair.Theballoonburstwithabang.Theballoonswelledoutwithgas.BalloonartistAdamLeewasaward...
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发表于:2018-01-31
Thetestresultsindicatedthatthemethodoftetheredballoonself-destructioncontrolledbypressureisviable.Watsonsaidtheteamwillbeespeciallyconcernedwithhowthepipeandtetheredballo...
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发表于:2021-03-08
问题详情:用方框中所给单词的适当形式填空。cut,balloon,live,history,celebrate holdapartyin________oftheirsuccess.isplayinghappilywithherfriends.Sheisa________girl.fatheroften...
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发表于:2017-08-04
YoutieaheliumballoontoyourheadandhopeitACTSlikeamanashield.Experimentwithaheliumballoon,ahotairballoon,orarigidspherefilledwithdifferentgases.Discoverwhatmakessomeballoon...
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发表于:2024-01-08
1、HisarticleforNationalGeographicdetailsthechallengesheundertooktoachievethelongestmannedballoonflight.2、asmallunmannedballoonsetalofttoobserveatmosphericconditions....