2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov explosives siab muaj cov khoom uas feem ntau muab cov ntsiab lus reacting nyob rau hauv tib lub molecule. Qhov no tso cai rau lawv hnov mob sai dua, thiab lawv "detonate." Detonation cuam tshuam nrog supersonic shock nthwv dej uas dhau los ntawm cov khoom, ua rau chemistry uas tshwm sim sai dua li hlawv.
Cov khoom tawg siab siv rau dab tsi?
Cov khoom tawg siab muaj qhov zoo hu ua "brisance" uas yog lawv lub peev xwm los tawg cov khoom. Qhov no ua rau lawv muaj txiaj ntsig rau pob zeb pob zeb lossis pob zeb pob zeb, tab sis tsis xav tau raws li cov phom loj, qhov uas tsis tshua muaj kev tawg yog nyiam vim tias lawv yog cov mos ntawm cov phom.
Yuav ua li cas tawg ua haujlwm siab?
Ib txoj kev xav dav dav ntawm cov khoom tawg yog qhov qhov kev tawg ntawm cov khoom tawg ua rau muaj qhov nrawm nrawm nrawm thiab tso pa tawm ntau heev. Qhov kev poob siab yoj tawg thiab tsoo cov pob zeb nyob ze ntawm cov khoom tawg thiab tsim ntau txhiab qhov tawg hauv pob zeb. Cov kab nrib pleb no mam li ntim cov pa nthuav dav.
Qhov cuam tshuam ntawm kev tawg yog dab tsi?
Cov teebmeem tawg feem ntau suav nrog cov overpressure, thermal teebmeem, energized projectiles (fragments, khib nyiab, thiab missiles), av poob siab, thiab cratering. Kev poob siab hauv av thiab cratering yuav tsis tham ntxiv hauv daim ntawv no.
Qhov tseem ceeb ntawm cov hmoov tawg yog dab tsi?
Phom Phom tau dav siv los ua cov tshuaj tiv thaiv hauv phom, phom loj, foob pob ua ntxaij, thiabpyrotechnics, suav nrog kev siv los ua tus neeg sawv cev blasting rau explosives hauv quarrying, mining, thiab txoj kev tsim. Phom phom raug cais raws li qhov tawg qis vim yog nws tus nqi qeeb qeeb thiab ua rau qis qis.
Pom zoo:
Vim li cas peb thiaj xav tau stenographers?
Stenographers tuaj yeem tsim cov ntaub ntawv ntev ntev ntawm txhua yam ntawm rooj plaub hauv tsev hais plaub mus rau kev sib tham kho mob. Qhov no yog qhov muaj txiaj ntsig zoo hauv ntau qhov kev cai lij choj, tab sis cov txuj ci tseem siv tau rau kev kaw lus nyob hauv TV lossis sau npe rau cov neeg mloog nyuaj ntawm cov xwm txheej.
Vim li cas peb thiaj xav tau tus lej lej?
Lexicographer tuaj nrog cov ntsiab lus, txiav txim siab txog ntu ntawm kev hais lus, muab cov lus hais, thiab qee zaum muab cov piv txwv kab lus. Lexicographer yuav tsum tau ua ntau yam kev tshawb fawb kom paub tseeb tias lawv tau txhais ib lo lus kom raug;
Vim li cas peb thiaj xav tau cov khoom siv hluav taws xob decoupling?
Ib lub decoupling capacitor ua raws li lub zog hluav taws xob hauv zos reservoir. Capacitors, zoo li cov roj teeb, xav tau sijhawm los them thiab tso tawm. Thaum siv los ua decoupling capacitors, lawv tawm tsam kev hloov pauv sai ntawm voltage.
Vim li cas peb thiaj xav tau xyoo leap?
Nyob rau xyoo leap, peb ntxiv ib hnub ntxiv rau 29 Lub Ob Hlis rau peb daim ntawv qhia hnub ntawm 365 hnub. Dab tsi mus ncig: Vim li cas peb muaj Lub Ob Hlis 29 txhua plaub xyoos yog vim ob lub sijhawm sib txawv cuam tshuam nrog kev hloov ntawm lub ntiaj teb.
Vim li cas peb thiaj xav tau cov ntawv sau?
Cov ntawv sau ua kom tiav cov haujlwm kom tiav thiab raws sijhawm. Muaj ntau ntau lub koom haum thiab cov txiaj ntsig khaws cia uas tuaj nrog kev siv cov folders, cov ntaub ntawv, cov cwj mem, thiab lwm yam khoom muaj feem xyuam. Vim li cas peb thiaj xav tau ntawv sau?
