Txoj moo
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Dab tsi yog qhov tshwj xeeb ntxim nyiam ntawm cov rooj tog ntshiab iav?
Dab tsi yog qhov tshwj xeeb ntxim nyiam ntawm cov rooj tog ntshiab iav? Cov rooj tog ntshiab cov iav rooj tog yog rooj tog ua kom muaj yuav luag txhua yam ntawm iav. Nws yog pob tshab, crystal ntshiab thiab ntxim hlub, thiab ci ntsa iab, thiab nws cov posture yog dawb thiab yooj yim. Tom qab lub iav ua tiav, nws tuaj yeem txiav mus rau hauv cov plaub fab, voj voog, ...Nyeem ntxiv -
Yuav Kho Li Cas Cov Kua Iav?
Tam sim no, iav tau dhau los ua cov khoom siv tsis tau muaj nyob hauv ntau qhov chaw, thiab txhua tus neeg yuav siv sijhawm ntau thiab nyiaj ntawm iav. Txawm li cas los xij, ib zaug cov iav yog khawb, nws yuav tawm ib qho nyuaj rau tsis quav ntsej, uas tsis yog cuam tshuam rau cov tsos mob, tab sis kuj yuav ua rau lub neej ntawm lub neej ...Nyeem ntxiv -
Dab tsi yog "zoo heev" ntawm cov tshiab ultra-ruaj khov thiab siv lub iav ruaj
Thaum Lub Kaum Hlis 15, cov kws tshawb nrhiav ntawm Chalmers University of Technology hauv Sweden tau ua tiav cov ntaub ntawv tshiab uas muaj xws li cov tshuaj, qib siab cell technology thiab hnub ci cell technology. Txoj kev tshawb no pom tias yuav ua li cas sib xyaw ntau molecule ...Nyeem ntxiv -
Cov qauv zoo ntawm txhua hnub iav kev lag luam tsis tau hloov pauv
Kev hloov pauv hauv khw muag khoom lag luam thiab ib puag ncig kev ntsuas yog ob qho teeb meem loj tam sim no yog kev lag luam txhua hnub, thiab ua haujlwm ntawm kev hloov pauv thiab kev txhim kho yog kev hloov pauv. "Ntawm lub rooj sib tham thib ob ntawm xya kev sib tham ntawm Tuam Tshoj txhua hnub iav koom haum tuav ob peb hnub ...Nyeem ntxiv -
Kev Paub Pom Zoo ntawm Cov Tshuaj Iav
Lub ntsiab muaj pes tsawg leeg ntawm iav yog quartz (silica). Quartz muaj cov dej tsis kam ua haujlwm zoo (uas yog, nws tsis yooj yim reacts nrog dej). Txawm li cas los xij, vim muaj lub siab melting point (txog 2000 ° C) thiab siab tus nqi ntawm high-purity silica, nws tsis haum rau siv ntau lawm; Ntxiv Network Modifiers tuaj yeem qis dua ...Nyeem ntxiv -
Iav spot cov nqi txuas ntxiv sawv
Raws li Jubo cov ntaub ntawv, los ntawm 23J, pob ntseg, thiab cov qhab nia hnyav rau txhua qib 12 hli, thiab 3-5 Yuan / hnyav lub thawv rau tag nrho cov thib ob -Class cov khoom tuab tuab. Cov. Shahe Hongsheng iav yuav nce los ntawm 0.2 yua ...Nyeem ntxiv -
Kev Ua Lag Luam Kev Ua Lag Luam: Kev loj hlob ntawm borosilicate iav hauv cov tshuaj yuav ncav cuag 7.5%
Qhov "kev soj ntsuam cov chaw ua lag luam" muab cov khoom lag luam hauv khw muag khoom, thiab cov kev lag luam zoo li cov khoom lag luam ntawm ntau yam kev lag luam ntawm kev ua lag luam Segments ...Nyeem ntxiv -
Photovoltaic yuav tsav ib nthwv dej ntawm cov dej qab zib
Cov khoom lag luam tau pib sib txawv dua txij li Lub Xya Hli, thiab cov neeg mob tshwm sim los txwv qhov nce siab hloov ntau yam, tab sis soda tshauv kom maj mam. Muaj ob peb qhov hurdles nyob rau hauv pem hauv ntej ntawm dej qab zib dej qab zib: 1. Cov chaw tsim khoom yog qhov tsawg heev, tab sis cov khoom zais ntawm cov ...Nyeem ntxiv -
Dab tsi yog siab siab purity quartz? Cov siv yog dab tsi?
Kev ua kom zoo yog hais txog Quartz xuab zeb nrog Sio2 cov ntsiab lus ntawm 99.99%, thiab feem ntau yuav tsum muaj kev coj dawb huv yog siab dua 99.99%. Nws yog cov khoom siv raw rau cov khoom lag luam siab-kawg quartz cov khoom. Vim tias nws cov khoom muaj cov khoom siv lub cev thiab tshuaj zoo xws li kub ...Nyeem ntxiv -
Dab tsi ua cov txheej txheem ua haujlwm rau cov khoom iav?
Cov khoom iav yog lub sijhawm dav dav rau cov khoom lag luam txhua hnub thiab cov khoom lag luam tsim los ntawm cov iav ua cov khoom siv qub. Cov iav cov khoom lag luam tau siv dav hauv kev tsim kho, kho mob, tshuaj, tsev neeg, khoom siv hluav taws xob, kev tsim hluav taws xob, kev tsim hluav taws xob nuclear, thiab lwm yam teb. Vim yog fragi ...Nyeem ntxiv -
Kev Paub Pom Zoo ntawm Cov Tshuaj Iav
Lub ntsiab muaj pes tsawg leeg ntawm iav yog quartz (silica). Quartz muaj cov dej tsis kam ua haujlwm zoo (uas yog, nws tsis yooj yim reacts nrog dej). Txawm li cas los xij, vim muaj lub siab melting point (txog 2000 ° C) thiab siab tus nqi ntawm high-purity silica, nws tsis haum rau siv ntau lawm; Ntxiv Network Modifiers tuaj yeem qis dua ...Nyeem ntxiv -
Tus nqi ntawm cov iav fwj tseem sawv, thiab qee lub tuam txhab caw tau cuam tshuam
Txij li thaum pib ntawm lub xyoo no, tus nqi ntawm iav muaj yuav luag "txav mus rau txhua txoj kev", thiab ntau kev lag luam nrog kev thov siab rau cov iav tau hu ua "unbearable". Tsis ntev dhau los, qee cov tuam txhab muag vaj tse tau hais tias vim qhov nce ntau dhau ntawm cov nqi iav, lawv yuav tsum tau ...Nyeem ntxiv