Xov xwm

Lub ntsiab lus ntawm cov lej ntawm cov yas (1)
los ntawm Admin nyob rau hauv 22-08-12
Cov phooj ywg ceev faj yuav pom tias feem ntau lub raj mis yas yuav muaj cov lej thiab qee cov qauv yooj yim ntawm lawv, yog li cov lej no sawv cev li cas?"01": Nws yog qhov zoo tshaj rau muab pov tseg tom qab haus dej, kub-tiv taus rau 70 ° C.Feem ntau siv nyob rau hauv lub raj mis dej haus xws li ntxhia dej thiab carbonated ...
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Yuav ua li cas kom tshem tau cov ntxhiab tsw yas?
los ntawm Admin nyob rau hauv 22-08-12
Cov khoom yas uas nyuam qhuav yuav tshiab qee zaum muaj cov ntxhiab tsw ntxhiab tsw ntxhiab, uas tsis tuaj yeem lees txais rau ntau tus neeg, yog li yuav ua li cas tshem cov ntxhiab tsw no?1. Muab tso rau hauv qhov chaw ventilated thiab cia lub hnub qhuav.Qee qhov tsw yuav raug tshem tawm, tab sis nws yuav tig daj.2. Ntxuav sab hauv lub khob nrog de...
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Koj khi cov hnab yas li cas?
los ntawm Admin nyob rau hauv 22-08-06
Kuv tau rov qab mus rau kuv lub tebchaws tau ob hnub dhau los, vim kuv siv txoj kev hlais kuv niam yeej tsis siv los khi lub hnab yas, uas ua rau kuv niam tsis yooj yim qhib nws ib pliag.Thaum kawg, kuv thaum yau nrog lub hnab yas tiav,,, Muaj ntau txoj hauv kev los khi lub hnab yas, thiab yuav luag ...
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Cov khib nyiab zoo li cas yog yas?
los ntawm Admin nyob rau hauv 22-08-06
Tam sim no txhua tus tau tawm tswv yim txog kev faib cov khib nyiab.Kev faib cov khib nyiab yog hais txog cov ntsiab lus dav dav rau ntau yam kev ua ub no uas cov khib nyiab raug cais, khaws cia, tso thiab thauj mus raws li qee qhov kev cai lossis cov qauv, yog li hloov mus rau pej xeem cov peev txheej.Yog li dab tsi ntawm garba ...
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Cov zaub mov kub hauv hnab yas puas muaj tshuaj lom?
los ntawm Admin nyob rau hauv 22-07-30
Txawm hais tias peb mus rau lub tsev noj mov noj tshais lossis xaj khoom noj, peb feem ntau pom qhov tshwm sim no: tus thawj coj txawj ntse rub lub hnab yas, ces muab tso rau ntawm lub tais, thiab thaum kawg muab cov zaub mov tso rau hauv nws sai.Qhov tseeb, muaj ib qho laj thawj rau qhov no.: Cov zaub mov feem ntau stained nrog roj.Yog tias nws yuav tsum tau ntxuav, nws ...
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Puas yog yas yog tus neeg xyuas pib lossis ib qho insulator?
los ntawm Admin nyob rau hauv 22-07-30
Puas yog yas yog tus neeg xyuas pib lossis ib qho insulator?Ua ntej, cia peb nkag siab qhov sib txawv ntawm ob: Tus neeg xyuas pib yog ib yam khoom uas muaj kev tiv thaiv me me thiab ua hluav taws xob yooj yim.Ib qho insulator yog ib yam khoom uas tsis ua hluav taws xob nyob rau hauv ib txwm muaj xwm txheej.Tus cwj pwm...
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Puas yog Yas Crystalline lossis Amorphous?
los ntawm Admin nyob rau hauv 22-07-23
Puas yog peb cov khoom siv yas crystalline lossis amorphous?Ua ntej, peb yuav tsum to taub dab tsi yog qhov tseem ceeb sib txawv ntawm crystalline thiab amorphous.Crystals yog atoms, ions lossis molecules uas tau teeb tsa hauv qhov chaw raws li qee lub sijhawm los tsim cov khoom nrog qee yam geometric s ...
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Cov yam ntxwv tseem ceeb thiab cov qauv molecular ntawm cov yas
los ntawm Admin nyob rau hauv 22-07-23
Cov khoom sib txawv ntawm cov yas txiav txim siab nws siv hauv kev lag luam.Nrog rau kev nce qib ntawm thev naus laus zis, kev tshawb fawb txog kev hloov kho yas tsis tau tso tseg.Dab tsi yog cov yam ntxwv tseem ceeb ntawm cov yas?1. Feem ntau cov yas yog lub teeb hauv qhov hnyav, tshuaj lom neeg ruaj khov, thiab yuav tsis xeb;2. Zoo cuam tshuam r...
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Kev ua lag luam thiab kev zoo ntawm cov ntawv ntim zaub mov
los ntawm Admin nyob rau hauv 22-07-16
Daim ntawv muaj elasticity zoo thiab toughness, uas tuaj yeem muab kev tiv thaiv zoo rau cov khoom ntim khoom;daim ntawv tsis cuam tshuam los ntawm tshav kub thiab lub teeb, xws li khoom noj khoom haus thiab tshuaj, ntawv yog ib txwm ntim khoom, thiab nws yog tshwj xeeb tshaj yog haum rau cov neeg uas xav tau tej yam ntuj tso khoom ...
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Khoom noj khoom haus Wrapping Ntawv
los ntawm Admin nyob rau hauv 22-07-16
Cov ntawv ntim khoom noj yog cov khoom ntim nrog cov ntawv thiab cov duab los qhia ua cov ntaub ntawv tseem ceeb.Nws yuav tsum tau ua kom tau raws li qhov yuav tsum tau muaj ntawm cov khoom tsis muaj tshuaj lom, roj-resistant, tsis muaj dej tsis zoo thiab noo noo-pov thawj, sealing, thiab lwm yam., thiab cov ntawv siv rau ntim cov khoom noj uas ua tau raws li qhov yuav tsum tau muaj kev nyab xeeb ntawm kev ntim khoom noj.B...
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Achromatic xim
los ntawm Admin nyob rau hauv 22-07-09
Cov xim Achromatic muaj tib lub txiaj ntsig zoo li cov xim chromatic.Dub thiab dawb sawv cev rau yin thiab yang ncej ntawm lub ntiaj teb xim, xim dub txhais tau hais tias tsis muaj dab tsi, zoo li nyob ntsiag to mus ib txhis, thiab dawb muaj qhov ua tsis tiav.1. Dub: Los ntawm qhov kev xav ntawm kev xav, dub txhais tau tias tsis muaj lub teeb thiab kuv ...
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Cov nyhuv ntawm dispersants ntawm cov xim
los ntawm Admin nyob rau hauv 22-07-09
Dispersant yog ib qho khoom siv feem ntau siv rau hauv toner, uas yuav pab kom ntub cov xim, txo qhov me me ntawm cov xim, thiab ua rau kom muaj kev sib raug zoo ntawm cov resin thiab cov xim, yog li txhim kho kev sib raug zoo ntawm cov xim thiab cov cab kuj, thiab txhim kho. qhov dispersion ...
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