Xov xwm
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Cov ntawv thov ntawm Deuterium
Deuterium yog ib qho ntawm cov isotopes ntawm hydrogen, thiab nws lub nucleus muaj ib qho proton thiab ib qho neutron. Kev tsim cov deuterium thaum ntxov tshaj plaws feem ntau yog nyob ntawm cov dej hauv cov xwm txheej, thiab cov dej hnyav (D2O) tau txais los ntawm kev faib ua feem thiab electrolysis, thiab tom qab ntawd cov roj deuterium tau rho tawm ...Nyeem ntxiv -
Cov pa roj sib xyaw uas siv ntau hauv kev tsim khoom semiconductor
Epitaxial (kev loj hlob) Cov Pa roj sib xyaw hauv kev lag luam semiconductor, cov pa roj siv los cog ib lossis ntau txheej ntawm cov khoom los ntawm kev tso cov pa tshuaj rau ntawm cov khoom siv xaiv zoo hu ua epitaxial gas. Cov pa roj silicon epitaxial feem ntau siv suav nrog dichlorosilane, silicon tetrachloride thiab silane. M...Nyeem ntxiv -
Yuav ua li cas xaiv cov roj sib xyaw thaum vuam?
Cov roj sib xyaw ua ke rau kev vuam yog tsim los txhim kho qhov zoo ntawm cov vuam. Cov roj uas xav tau rau cov roj sib xyaw kuj yog cov roj tiv thaiv vuam xws li oxygen, carbon dioxide, argon, thiab lwm yam. Kev siv cov roj sib xyaw es tsis txhob siv cov roj ib leeg rau kev tiv thaiv vuam muaj txiaj ntsig zoo ntawm kev siv cov khoom siv zoo...Nyeem ntxiv -
Cov kev cai kuaj ib puag ncig rau cov roj txheem / roj calibration
Hauv kev sim ib puag ncig, cov roj txheem yog qhov tseem ceeb los xyuas kom meej qhov ntsuas raug thiab kev ntseeg tau. Cov hauv qab no yog qee qhov kev cai tseem ceeb rau cov roj txheem: Kev huv ntawm cov roj Kev huv siab: Kev huv ntawm cov roj txheem yuav tsum siab dua 99.9%, lossis ze li ntawm 100%, kom tsis txhob cuam tshuam rau i...Nyeem ntxiv -
Cov pa roj txheem
"Cov roj txheem" yog ib lo lus hauv kev lag luam roj. Nws yog siv los ntsuas cov cuab yeej ntsuas, soj ntsuam cov txheej txheem ntsuas, thiab muab cov nqi txheem rau cov pa roj tsis paub. Cov roj txheem muaj ntau yam kev siv. Muaj ntau cov roj ib txwm thiab cov roj tshwj xeeb siv hauv...Nyeem ntxiv -
Tuam Tshoj tau tshawb pom cov peev txheej helium zoo dua
Tsis ntev los no, Haixi Prefecture Natural Resources Bureau ntawm Qinghai Province, ua ke nrog Xi'an Geological Survey Center ntawm Tuam Tshoj Geological Survey, Lub Chaw Tshawb Fawb Roj thiab Roj Av thiab Lub Tsev Kawm Ntawv Geomechanics ntawm Suav Academy of Geological Sciences, tau tuav lub rooj sib tham ...Nyeem ntxiv -
Kev tshuaj xyuas kev lag luam thiab kev cia siab ntawm chloromethane
Nrog rau kev txhim kho tas li ntawm silicone, methyl cellulose thiab fluororubber, kev ua lag luam ntawm chloromethane txuas ntxiv txhim kho Cov Khoom Txheej Txheem Cej Luam Methyl Chloride, tseem hu ua chloromethane, yog cov organic compound nrog cov tshuaj CH3Cl. Nws yog cov roj tsis muaj xim ntawm chav tsev kub thiab siab ...Nyeem ntxiv -
Cov pa roj laser excimer
Excimer laser yog ib hom ultraviolet laser, uas feem ntau siv rau ntau qhov chaw xws li kev tsim khoom siv chip, phais qhov muag thiab kev ua laser. Chengdu Taiyu Gas tuaj yeem tswj qhov sib piv kom raug kom ua tau raws li cov qauv kev txhawb nqa laser, thiab peb lub tuam txhab cov khoom tau siv rau...Nyeem ntxiv -
Qhib qhov txuj ci tseem ceeb ntawm hydrogen thiab helium hauv kev tshawb fawb
Yog tsis muaj cov thev naus laus zis ntawm cov kua hydrogen thiab cov kua helium, qee qhov chaw tshawb fawb loj yuav zoo li ib pawg hlau seem ... Cov kua hydrogen thiab cov kua helium tseem ceeb npaum li cas? Cov kws tshawb fawb Suav tau kov yeej cov hydrogen thiab helium uas tsis yooj yim ua kua li cas? Txawm tias yog cov zoo tshaj plaws ...Nyeem ntxiv -
Cov roj hluav taws xob tshwj xeeb uas siv ntau tshaj plaws - nitrogen trifluoride
Cov pa roj hluav taws xob tshwj xeeb uas muaj fluorine feem ntau suav nrog sulfur hexafluoride (SF6), tungsten hexafluoride (WF6), carbon tetrafluoride (CF4), trifluoromethane (CHF3), nitrogen trifluoride (NF3), hexafluoroethane (C2F6) thiab octafluoropropane (C3F8). Nrog rau kev txhim kho ntawm nanotechnology thiab...Nyeem ntxiv -
Cov yam ntxwv thiab kev siv ntawm ethylene
Cov mis tshuaj yog C2H4. Nws yog cov khoom siv tshuaj lom neeg tseem ceeb rau cov xov paj hluavtaws, roj hmab hluavtaws, cov yas hluavtaws (polyethylene thiab polyvinyl chloride), thiab ethanol hluavtaws (cawv). Nws kuj tseem siv los ua vinyl chloride, styrene, ethylene oxide, acetic acid, acetaldehyde, thiab expl...Nyeem ntxiv -
Krypton muaj txiaj ntsig zoo heev
Krypton yog ib qho roj inert uas tsis muaj xim, tsis muaj ntxhiab, tsis muaj saj, hnyav li ob npaug ntawm huab cua. Nws tsis ua haujlwm thiab tsis tuaj yeem hlawv lossis txhawb kev sib xyaw. Cov ntsiab lus ntawm krypton hauv huab cua yog me me heev, tsuas yog 1.14 ml ntawm krypton hauv txhua 1m3 ntawm huab cua. Kev siv krypton hauv kev lag luam Krypton muaj qhov tseem ceeb ...Nyeem ntxiv
