Txais tos rau peb cov vev xaib!

Xov xwm

  • Tuam Tshoj scrambles los daws lub zog nyem thiab ua kom cov khoom lag luam tawm ntawm kev tswj tsis tau

    Thaum Lub Kaum Ib Hlis 27, 2019, ib tug txiv neej tuaj txog ntawm lub chaw tsim hluav taws xob nyob hauv Harbin, Xeev Heilongjiang, Suav. REUTERS/Jason Lee Beijing, Cuaj hlis 24 (Reuters) -China cov khoom lag luam tsim khoom thiab tsim khoom thaum kawg yuav muaj qee qhov kev pab vim nthuav kev txwv lub hwj chim cuam tshuam kev lag luam ...
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  • Txawm hais tias Evergrande muaj kev txhawj xeeb, Sika tseem muaj kev cia siab txog Tuam Tshoj txoj kev cia siab

    Zurich (Reuters) -Chief Executive Thomas Hasler tau hais rau hnub Thursday tias Sika tuaj yeem kov yeej cov nqi raw khoom thoob ntiaj teb thiab qhov tsis paub tseeb cuam tshuam nrog cov teeb meem nuj nqis ntawm tus tsim Tuam Tshoj Evergrande txhawm rau ua tiav nws lub hom phiaj 2021. Tom qab xyoo tas los kis thoob qhov txhia chaw ua rau muaj kev poob qis hauv ...
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  • Kev ruaj ntseg hauv tsheb thiab kev tsim kho kev lag luam ua rau muaj kev xav tau rau cov hlau rov ua dua tshiab ntawm kev sib xyaw txhua xyoo kev loj hlob ntawm 5.5%

    Fact.MR qhov kev tshuaj ntsuam xyuas ntawm cov khoom siv hlau rov ua dua tshiab tshuaj ntsuam xyuas kom ntxaws txog kev loj hlob sai thiab kev hloov pauv cuam tshuam rau hom hlau, seem hom thiab kev lag luam xav tau. Nws kuj tseem hais txog ntau lub tswv yim tau pom zoo los ntawm cov neeg ua si loj kom tau txais kev sib tw kom zoo dua hauv cov khoom siv hlau seem ...
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  • Hnub Wednesday, Cuaj Hlis 29, 2021 Is Nrias teb pom cov paj paj tus paj laum thiab tus nqi nyiaj

    Is Nrias tus nqi kub (46030 rupees) tau poob txij li nag hmo (46040 rupees). Ib qho ntxiv, nws yog 0.36% qis dua tus nqi kub nruab nrab pom nyob rau lub lim tiam no (Rs 46195.7). Txawm hais tias tus nqi kub thoob ntiaj teb ($ 1816.7) tau nce los ntawm 0.18% hnub no, tus nqi kub hauv khw Indian tseem yog ...
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  • Kev Lag Luam Ntshiab Nickel

    Cov Tshuaj formula Ni Topics Covered Background Corrosion Resistance Properties of Commercially Pure Nickel Fabrication of Nickel Background Commercially pure or low alloy nickel pom nws lub ntsiab lus tseem ceeb hauv kev ua tshuaj thiab khoom siv hluav taws xob. Corrosion Resistance Vim yog cov ntshiab nickel ...
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  • Nkag Siab Cov Alloys Ntawm Aluminium

    Nrog kev loj hlob ntawm txhuas hauv kev lag luam vuam tsim, thiab nws lees paub tias yog lwm txoj hauv kev zoo rau cov hlau rau ntau daim ntawv thov, muaj qhov xav tau nce ntxiv rau cov uas koom nrog txhim kho cov phiaj xwm txhuas kom dhau los paub ntau dua nrog cov pab pawg no. Kom tag nrho ...
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  • Aluminium: Cov Khoom Tshwj Xeeb, Cov Khoom, Cov Qauv thiab Cov Chav Kawm

    Aluminium yog lub ntiaj teb cov hlau ntau tshaj plaws hauv ntiaj teb thiab yog lub hauv paus thib peb uas suav nrog 8% ntawm lub ntiaj teb ua kiav txhab. Qhov ua tau zoo ntawm txhuas ua rau nws siv dav hlau tshaj tom qab hlau. Kev tsim khoom ntawm Aluminium Aluminium tau muab los ntawm cov ntxhia bauxite. Bauxite hloov mus rau alumin ...
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  • Yuav xaiv li cas tiv thaiv cua sov xaim

     Yuav xaiv li cas tiv thaiv cua sov xaim (1) Rau kev yuav cov tuam txhab xws li cov lag luam hauv cov khoom siv tshuab, ntim tshuab, ntim tshuab, thiab lwm yam, peb xav kom siv NiCr xaim ntawm cr20Ni80 series raws li lawv qhov ntsuas kub tsis siab. Muaj qee qhov zoo ...
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  • enameled tooj liab hlau (txuas ntxiv)

    Khoom txheem l. Cov xaim hluav taws xob 1.1 cov khoom txheej txheem ntawm cov kab xaim ua kab: gb6109-90 series tus qauv; zxd/j700-16-2001 cov khoom lag luam tswj hwm tus qauv 1.2 cov khoom lag luam ntawm cov xaim xaim xaim: gb/t7095-1995 series Txuj rau kev ntsuas txoj hauv kev txhav txhav kab thiab tiaj tiaj: gb/t4074-1 ...
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  • Enameled tooj liab hlau (yuav tsum txuas ntxiv mus)

    Cov xaim hluav taws xob xaim yog hom tseem ceeb ntawm cov xov hlau, uas muaj ob ntu: tus neeg xyuas pib thiab txheej txheej thaiv. Tom qab txhuam thiab ua kom mos muag, cov hlau liab qab tau pleev xim thiab ci ntau zaus. Txawm li cas los xij, nws tsis yooj yim los tsim cov khoom lag luam uas ua tau raws li qhov xav tau ntawm cov qauv thiab cov neeg siv khoom. Nws yog ...
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  • FeCrAl alloy advantage and disadvantage

    FeCrAl alloy kom zoo dua thiab tsis zoo

    FeCrAl alloy yog ntau heev hauv hluav taws xob cua sov. Vim tias nws muaj ntau qhov zoo, tau kawg nws kuj muaj qhov tsis zoo, cia kawm nws. Qhov zoo: 1, Kev ntsuas kub hauv qhov chaw siab. Qhov kev pabcuam siab tshaj plaws ntawm HRE alloy hauv hlau-chromium-aluminium electrothermal ...
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  • Tankii Xov Xwm a Tus tiv thaiv yog dab tsi?

    Cov resistor yog cov khoom siv hluav taws xob passive los tsim kev tawm tsam hauv qhov hluav taws xob tam sim no. Hauv yuav luag txhua lub network hluav taws xob thiab cov hluav taws xob hluav taws xob lawv tuaj yeem pom. Qhov tsis kam yog ntsuas hauv ohms. Lub ohm yog qhov tsis kam uas tshwm sim thaum tam sim no ntawm ib qho ampere dhau los ntawm ...
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12 Tom ntej no> >>> Nplooj ntawv 1 /2