Cov qe dej iav ua haujlwm li cas?

Cov txheej txheem:

Cov qe dej iav ua haujlwm li cas?
Cov qe dej iav ua haujlwm li cas?
Anonim

Txoj kev no hu ua "dej iav" qe. Kev khaws cov qe hauv qhov kev zam no tso cai rau cov qe tshiab kom khaws cia tag nrho hauv lawv daim ntawv nyoos, plhaub thiab tag nrho. Dej khob cov qe cia cov qe noj zoo li lawv khaws tib hnub.

hydrated txiv qaub khaws qe li cas?

Yog li ua haujlwm li cas? Khaws cov qe hauv khoom noj khoom haus-kev nyab xeeb cov kua qaub ua nrog cov txiv qaub(calcium hydroxide). Cov tshuaj calcium uas kaw lub qe thiab khaws cov qe rau ib xyoos lossis ntau dua. Txawm hais tias nws hu ua "pickling txiv qaub" nws tsis ua cov qe qe.

Puas dej iav qe hloov qhov saj?

Txhua xyoo kuv cia kuv cov qe tso rau hauv dej kom ntev dua kom pom tias lawv yuav kav ntev npaum li cas. Txhua xyoo kuv txaus siab rau qhov ntev npaum li cas kuv cov qe tseem zoo, thiab saj li tshiab raws li hnub peb coj lawvhauv tsev qaib.

khob dej rau qe yog dab tsi?

Cov iav dej (kua sodium silicate) tso cai rau cov txheej txheem qub los ua cov qe tshiab thiab kav ntev - txog li ob peb lub hlis.

Koj puas ntxuav qe ua ntej dej iav?

Yuav cov qe yuav tshem tawm cov paj ntawm lub qe uas ntxiv raws li lub qe tso. Nws tiv thaiv qe los ntawm cov kab mob. Vim li no, tsis txhob siv lub khw yuav qe rau khob dej ! Pib ntxiv qe rau lub thoob dej txiv qaub.

Pom zoo:

Nthuav cov khoom
Lub sijhawm elongation ntawm kev txhais lus uncharged trnas txav mus rau?
Nyeem ntxiv

Lub sijhawm elongation ntawm kev txhais lus uncharged trnas txav mus rau?

Peptide daim ntawv cog lus; uncharged tRNA txav mus rau qhov E site & tom qab tawm ntawm ribosome; lub mRNA tau hloov pauv 3 lub hauv paus mus rau sab laug, ua rau tRNA bearing dipeptide hloov mus rau P site P site P-site (rau peptidyl) yog qhov thib ob khi qhov chaw rau tRNA hauv ribosome.

Dab tsi yog asbestiform fibers?
Nyeem ntxiv

Dab tsi yog asbestiform fibers?

Raws li siv hauv daim ntawv tshaj tawm no, lo lus asbestiform fibers suav nrog fibers uas muaj lub zog zoo thiab yoog raws, ruaj khov, cov qauv saum npoo tsis muaj qhov tsis xws luag, thiab ntau lwm yam khoom tau piav qhia tom qab. Kev lag luam zoo asbestos yog ib qho piv txwv ntawm asbestiform fiber.

Colleen dewhurst tuag li cas?
Nyeem ntxiv

Colleen dewhurst tuag li cas?

Dewhurst tuag rau hnub Thursday ntawm mob qog noj ntshav ntawm nws lub tsev hauv New York suburb ntawm Lewisboro, hais Tom Viola, tus kws tshaj lij rau lub koomhaum uas nws ua haujlwm, Tus Ua Yeeb Yam Equity. Txawm hais tias ntau phau ntawv sau npe Dewhurst hnub nyoog li 65, nws yog 67, hais tias nws tus khub ntev, Ken Marsolais.