Video: Lub qe zoo li tus hniav li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qe muaj cov tshuaj zoo sib xws rau peb hniav txha hniav laus, ua rau lawv zoo ib yam nrog lwm cov tshuaj. Qhov no tuaj yeem pab peb nkag siab txog dab tsi hniav txha hniav laus. Thaum peb txhuam ib lub qe nrog cov tshuaj txhuam hniav fluoridated, nws ntxiv dag zog rau lub plhaub thiab tiv thaiv nws ntawm cov kua qaub, tsuas yog nyiam nws ua rau peb hniav txha hniav laus.
Kuj nug, cov qe thiab cov hniav yog dab tsi?
Qe qe yog ua ntawm calcium carbonate - ib qho ntxhia tawv uas zoo ib yam li calcium phosphate, cov khoom peb cov hniav yog ua ntawm. Cov kua qaub ua haujlwm nrog calcium carbonate, tsoo nws sib cais rau hauv calcium (uas yog nqa tawm hauv dej) thiab cov pa roj carbon dioxide.
Ib yam li ntawd, yuav ua li cas egghells regrow hniav? Muab tso rau qe hauv dej npau li 5 feeb kom tua tau cov kab mob. Huab cua qhuav lub hauv paus thiab zom lawv hauv lub kas fes grinder. Siv ½ teaspoon ib hnub; Ntxiv cov hmoov rau lub smoothie, los yog sib tov nrog khob cij los yog pizza mov paj yog ob peb lub tswv yim.
Ib yam li ntawd, tib neeg nug, hloov tshuaj txhuam hniav yog dab tsi?
Eggsperiment rau Cov hniav . Kab lus Catalyst no piav qhia txog kev sim nrog cov tshuaj txhuam hniav fluoride ntawm cov qe (raws li a hloov cov hniav ). Ob leeg cov hniav thiab qe muaj cov tshuaj calcium uas tuaj yeem tawm tsam los ntawm cov kua qaub. Thaum twg cov hniav raug rau cov kua qaub nyob hauv lub qhov ncauj lawv ua rau muaj kab mob yooj yim dua.
Dab tsi yog cov qe ua los ntawm?
Qe yog ua Yuav luag tag nrho cov calcium carbonate (CaCO3) muaju. Nws yog daim nyias nyias semipermeable, uas txhais tau tias huab cua thiab dej noo tuaj yeem hla nws cov pores. Lub plhaub kuj tseem muaj txheej txheej sab nraud hu ua paj tawg los yog cuticle uas pab khaws cia tawm kab mob thiab hmoov av.
Pom zoo:
Tes twg uas tus kws pab kho hniav siv los tuav tus neeg khiav tawm thaum pab tus kws kho hniav muaj txoj cai?
Sab tes xis
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