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發表於:2020-12-23
Sol-GelSynthesisofZinc-SubstitutedHydroxyapatiteSynthesisofPbTiO_3NanowiresbySol-GelTemplateMethodPreparationofTiO_2/SiO_2MultilayerFilmsViaSol-GelMethods;OntheSol-GelTec...
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發表於:2021-01-17
問題詳情:為了研究樂音的物理規律,某同學用計算機同時錄製下優美的笛聲do和sol,然後在電腦上用軟件播放,分別得到如下圖(a)和圖(b)的兩個振動圖象,由此可以判斷A.do和sol的週期之比約為2:3B.do和so...
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發表於:2024-01-31
1、Thisletteristoinformyouthatwehavelatelyobtainedapatentforanimprovedmethodofaluminumsoldering....
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發表於:2024-02-23
1、ResearchonTonicSol-fainTourismPerformingTeaching;2、TheproficiencyinclassificationandselectionofSol-faandthemasteryovertrainingmethodsandstepsofintonationarefundamenta...
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發表於:2020-11-24
問題詳情:---Didyoubuythecartenyearsago? ---Yes. it’sold,itstillworkswell. A.Though B.Because C.But...
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發表於:2018-09-13
ThewaveequationsofplanewaveinelasticsolidsarederivedfromHookelaw.Arapidlinearmotionofaparticleorofanelasticsolidaboutanequilibriumposition.Thestrain,geometricequationandp...
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發表於:2019-01-23
Influenceoffibercarriersonsilicasol-gelcoatingEffectofsurfactantsonviscositypropertiesofsilicasolTheresearchofsilicasolgraftmodifiedbyhexamethyldisilazanePrepareationanda...
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發表於:2018-04-29
PreparationofhydrophobiccoatingswithmethyltrimethoxysilanemodifiedSi-solTheresearchofsilicasolgraftmodifiedbyhexamethyldisilazaneThisarticlemainlyconcentratestothepopmusi...
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發表於:2021-01-19
問題詳情:為了研究樂音的振動規律,某同學用計算機錄製下優美的笛音do和sol,然後在電腦上用軟件播放,分別得到如圖中a和b所示的兩個振動圖線,則下列説法正確的是和sol兩笛音的頻率之比約...