2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov airbags hauv tsheb muaj sodium azide, NaN3, thiab ntau tshaj ntawm cov poov tshuaj nitrate, KNO3. Nyob rau hauv tsheb sib tsoo, cov kev tshwm sim tshwm sim, ua nitrogen. Qhov no ua rau lub airbag ua kom nrawm nrawm.
Yuav ua li cas airbags nrawm nrawm?
Lub airbag system ignites ib tug khoom propellant, uaskub hnyiab heev heev los tsim ib tug loj ntim ntawm rojkom inflate lub hnab. Lub hnab ntawv thiaj li tawg tawm ntawm nws qhov chaw khaws cia txog li 200 mph (322 kph) - sai dua li lub qhov muag pom!
Dab tsi ua rau airbags nce?
Cov lus teb yuav pom nyob rau hauv cov tshuaj lom neeg hu ua sodium azide, NaN3. Thaum cov khoom no yog ignited los ntawm lub txim nws tso tawm cov pa nitrogen uas tuaj yeem ua rau lub hnab ntim khoom sai sai.
Thaum lub tsheb lub hnab cua inflates sodium azide NaN3 decomposes thiab tsim cov roj nitrogen N2 thiab lwm cov khoom lag luam Cov khoom lag luam twg muaj lwm yam khoom koj paub?
Tshuaj Tiv Thaiv Siv Los Tsim Cov Roj
Sodium azide (NaN3) tuaj yeem decompose ntawm 300oC los tsim sodium hlau (Na) thiab nitrogen gas (N2).
Qhov luaj li cas ntawm lub airbag cuam tshuam nws qhov kev ua tau zoo li cas?
Txawm li cas los xij, thaum lub cev tsoo lub airbag, uas loj dua li lub kauj, tag nrho cov quab yuam los ntawm lub hnab airbag ntawm lub cev yuav raug faib (kis) hla thaj tsam loj ntawm lub cev(Daim duab 5b). Yog li ntawd, lub zog ntawm ib qho tshwj xeeb point ntawm lublub cev me dua. Yog li ntawd, kev raug mob hnyav yuav tshwm sim.
Pom zoo:
Puas yog kev sib ntaus sib tua ntawm kev sib ntaus sib tua?
Kev sib ntaus sib tua ntawm Hastings, uas Anglo-Saxon huab tais Harold II tau sim tiv thaiv nws lub tebchaws los ntawm kev tawm tsam ntawm William, duke ntawm Normandy (tom qab hu ua William tus Conqueror), tau tshwm sim rau 14 October 1066.
Dab tsi yog qhov kev nrawm nrawm nrawm?
Spike Rush yog a nrawm-paced game mode. Lub sij hawm ua ntej ib puag ncig raug txo mus rau 20 vib nas this (feem ntau 30) thiab lub sijhawm ua si raug txo mus rau 80 vib nas this (feem ntau 100). Thaum cov neeg tawm tsam muaj sijhawm tsawg dua los cog, lawv kuj muaj qhov zoo ntawm txhua tus neeg ua si uas muaj qhov dav.
Peb qhov twg yog qhov yuav tsum tau ua ua ntej rau kev ua kom nrawm nrawm nrawm?
Cov yam yuav tsum tau ua ua ntej yuav tsum tau ua kom ua tau kom pib ua tsis tau sai: Tus broker configuration yuav tsum ua hauj lwm nyob rau hauv siab tshaj plaws muaj los yog siab tshaj plaws kev kawm hom. Cov ntaub ntawv tseem ceeb yuav tsum tau teeb tsa nrog cov ntaub ntawv rov ua dua tshiab.
Nyob rau xyoo 2008 kev sib tsoo nrawm suav nrog?
Hauv xyoo 2008, kev nrawm nrawm yog qhov ua rau 31 feem pua ntawm tag nrho cov kev sib tsoo tuag, thiab 11, 674 tus neeg tau poob rau hauv kev sib tsoo nrawm. Tag nrho cov nqi kev lag luam ntawm kev sib tsoo tau kwv yees li ntawm $ 230.6 nphom hauv xyoo 2000.
Leej twg pab txhawb kev sib tsoo ntawm kev sib tsoo?
Txhua pab pawg Scrum muaj nws ScrumMaster lossis ib pawg neeg xaiv tsa tuaj koom lub rooj sib tham Scrum ntawm Scrum lub rooj sib tham Lub rooj sib tham sawv cev qee zaum kuj hu ua "stand-up "thaum ua Extreme Programming, "thaum sawv ntxov rollcall"
