Qhov Zoo ntawm Lub Thawv Ntim

Nrog rau kev nce qib txuas ntxiv ntawm cov pejxeem thiab kev loj hlob sai ntawm kev loj hlob, cov teeb meem vaj tse tau dhau los ua qhov tseem ceeb ntawm kev sib raug zoo. Nyob rau hauv xyoo tsis ntev los no, ib hom tshiab ntawm vaj tse - thawv tsev los ntawm ntau thiab ntau tus neeg mloog thiab hlub. Qhov no zoo ntawm cov vaj tse ntawm lub tsev qub tsis yog tsuas yog ib puag ncig ua phooj ywg thiab kev tsim kho kom yooj yim, tab sis kuj muaj kev tsim kho hauv tsev, kev tsim kho tus kheej thiab lwm daim teb.
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Piv nrog cov vaj tse tsoos, tus nqi tsim khoom ntawm cov thawv ntim qis dua, feem ntau vim yog nws cov txheej txheem tsim kho thiab cov txheej txheem tsim kho kom yooj yim thiab nrawm. Ib qho ntxiv, cov ntaub ntawv ntawm lub thawv ntim tau hloov los ntawm cov khib nyiab pov tseg, uas tuaj yeem rov ua dua tshiab thiab siv ntau dua, thiab yog ib puag ncig zoo dua.
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Cov Khoom Siv Hardness Ntawm Lub Thawv yog qhov siab, cov av qeeg tsis kam thiab hluav taws kub tiv taus muaj zog, uas tuaj yeem ua kom muaj kev nyab xeeb ntawm cov neeg nyob hauv. Nyob rau tib lub sijhawm, kev pabcuam lub neej ntawm lub tsev nyob yog ntau tshaj 20 xyoo, thiab nws tsis yooj yim rau kev lwj lossis tau txais cov kev xav tau ntawm cov neeg nyob ntev.