enamel yog dab tsi? Nyob rau hauv niaj hnub Lavxias teb sab, ib lo lus yuav muaj ntau lub ntsiab lus, ob qho tib si etymologically raug thiab "colloquial", tsis yog heev. Cia peb saib cov txheej txheem enamel thiab cov hniav enamel ua piv txwv ntawm kev siv cov lus pom tseeb tshaj plaws hauv kev nkag siab zoo. Nws tseem tsim nyog ua tib zoo saib xyuas cov ntsiab lus ntawm "enamel-xim" thiab "enamelware", uas yog siv ntau hauv lub neej txhua hnub, uas tsis ncaj qha ntsig txog lub tswv yim ntawm enamel.
"Enamel": lub ntsiab lus ntawm lo lus. Direct meaning
Yog li, hauv kev nkag siab ntawm lo lus, enamel yog txheej iav zoo li cov tuab me me, uas tau txais los ntawm kev kub kub kub. Nws yog nyob rau hauv qhov kev nkag siab tias lo lus "enamel" tuaj rau hauv lus Lavxias los ntawm Fabkis. Ntxiv mus, cov thev naus laus zis rau nws cov khoom tsim tau paub hauv Russia txij li tsawg kawg yog xyoo pua kaum ob, tab sis tom qab ntawd lo lus "finift" tau siv.
Dab tsi yog technical enamel? Nws tuaj yeem muaj lub ntsiab lus siv tau (piv txwv li, kev tiv thaiv corrosioncov khaubncaws sab nraud povtseg), thiab kos duab (picturesque miniatures tsim siv cov cuab yeej hais txog). Nws yuav tsum tau muab sau tseg tias feem ntau nyob rau hauv lub neej txhua hnub kev txiav txim siab, cov khoom tiav ntawm kev tsim lawv tus kheej kuj yog hu ua enamels, tshwj xeeb tshaj yog nyob rau hauv lub plural. Piv txwv li, ib txheej ntawm cov xim pleev xim rau enamel tuaj yeem hu ua txheej txheej enamels.
Enamel hmoov tsim cov khoom sib txawv heev nyob ntawm thaj chaw thiab lub sijhawm tsim khoom. Dab tsi yog enamel thiab niaj hnub technologies? Feem ntau yog ua los ntawm kev sib xyaw ntawm oxides ntawm silicon, boron, titanium, txhuas, txhuas, zinc thiab lwm yam hlau.
Thiab qhov sib ntxiv ntawm cov ions tshwj xeeb tso cai rau koj kom ua tiav cov xim xav tau ntawm txheej tiav. Tsis tas li ntawd, ntau xyoo dhau los, txoj hauv kev siv cov khoom pib tau txhim kho, xws li atomizers thiab electrostatic chambers, uas tso cai rau koj ua tiav cov txheej txheem zoo heev.
"Tooth" meaning
lo lus "enamel" txhais li cas ntxiv? Yog li, nyob rau hauv lub cev thiab kev kho hniav, cov hniav enamel hu ua ib txheej nyias nyias ntawm cov khoom tsis muaj zog (li 97%) thiab cov organic (li 3%), uas tiv thaiv cov hniav ntawm cov hniav. Cov khoom no yog cov dej tsis muaj dej ntau tshaj plaws ntawm tib neeg lub cev, nrog rau lub sijhawm ua haujlwm ntev tshaj plaws.
Qhov tshwj xeeb hardness ntawm cov hniav enamel yog vim lub hydrated daim ntawv ntawm apatite, uas yog "reinforced" nrog inclusions ntawm magnesium, chlorine, fluorine, barium, chromium, thiab ib tug me me ntawm cov organic tshuaj. Ntawm cov organic Cheebtsam, collagen yuav tsum tau muab sau tseg, uas ho ua rau kom lub zog ntawm cov enamel vim yog muaj zog.txo qhov fragility tom kawg.
Strong enamel - cov hniav muaj zog
Rau tus neeg niaj hnub no, kev saib xyuas cov enamel yog ib qho tseem ceeb ntawm kev tu cev thiab kev tiv thaiv kab mob ntawm qhov ncauj. Cov feem ntau apatite muaj pes tsawg leeg tiv thaiv lub crown mechanically, txawm li cas los xij, nws tus kheej tiv thaiv tsis zoo los ntawm ib puag ncig hnyav thiab tsis tshua muaj siab rau acidity ntawm ib puag ncig.
Tam sim no ntawm tus nqi pH ntawm 4.6, cov hniav enamel raug rhuav tshem. Feem ntau, acidity ntawm qaub ncaug tsis ncav cuag qhov tseem ceeb, txawm li cas los xij, cov kab mob hauv lub qhov ncauj sai sai "acidify" ib puag ncig. Cov khoom los ntawm lawv cov dej num yog cov organic acids, uas ua rau muaj kev hem thawj loj tshaj plaws rau enamel.
Qhov teeb meem yog daws tau los ntawm kev tshem tawm cov khoom khib nyiab tom qab noj mov, uas deprives microflora ntawm nws cov khoom noj khoom haus. Lwm qhov txaus ntshai rau enamel yog nyob rau hauv cov khoom uas pib muaj cov kua qaub. Piv txwv li, tshuaj muaj nyob rau hauv tej txiv hmab txiv ntoo (organic acids) los yog dej qab zib (phosphoric acid) yuav ua rau mob.
enamel yog dab tsi? Figurative meaning
Nws yooj yim pom tias lub ntsiab lus dav dav ntawm ib qho ntawm cov ntsiab lus ntawm enamel yog txheej txheej nyias nyias. Tias yog vim li cas hauv lub neej niaj hnub xws li cov ntsiab lus xws li "enamelware" thiab "enamel paint" tau tshwm sim. Lawv tsis muaj dab tsi ua nrog cov enamel tiag, tab sis kev hais lus "enamel" yog lub ntsiab lus tiv thaiv hauv lawv.
Cov khoom siv enameled yog hu ua cov khoom siv hauv chav ua noj hauv lub neej txhua hnub, uas cov hlau (feem ntau yog hlau) yog npog nrog nyias iav zoo li ceramics. Lub txheej ua ib qho kev tiv thaivmuaj nuj nqi, thiab zam kev sib cuag ntawm cov zaub mov thiab hlau.
Enamel xim yog cov kua roj vanish-raws li kev tiv thaiv txheej rau cov khoom hlau hauv kev lag luam. Lawv muaj cov kuab tshuaj, cov kua roj vanish tiag tiag, cov xim pleev xim, cov khoom ntim thiab cov khoom siv tshwj xeeb. Raws li nws tau pom tseeb, cov lus teb niaj hnub rau cov lus nug txog dab tsi "enamel" tsis yog qhov muaj peev xwm ntawm cov xim pleev xim, txawm hais tias cov khoom xyaw lossis cov qauv ntawm daim ntawv thov rau saum npoo.
