Yog tias nws tsis nyuaj rau peb los sib dhos ua ke ntawm ntau ntau yam khoom siv sib xyaws, tom qab ntawv sib dhos ntawm ib txhiab lossis ntau daim tig mus rau hauv qhov kev nyuaj nyuaj nyuaj. Txawm hais tias qhov no ua rau nws txawm nthuav.
Qhov tsim nyog, nqa ib daim ntawv loj thiab kos ib thaj tsam ntawm koj kev ua si ntawm nws. Nws qhov ntev feem ntau yog sau rau ntawm lub thawv.
Pib nteg tawm ntawm lub thav duab los ntawm tus ncej. Cov ntawv sib dhos no yeej ib txwm muaj qhov txawv ntawm tus so los ntawm lawv cov ntawv ncaj. Xaiv cov thooj no los ntawm tag nrho cov huab hwm coj. Ua ntej, muab cov khoom ua ke nrog ob sab ncaj nruab nrog rau cov ces kaum, thiab tom qab ntawd nteg tawm cov seem uas seem.
Txhawm rau muab qhov sib dhos yooj yim dua los ua ke, xyuam xim rau qhov chaw nyob ntawm cov pob ntawm daim ntawv sib dhos. Cov bulges no yog ncaj rau ntawm qhov xaus los yog beveled. Cia hais tias beveled xaus xaus rau sab saum toj thiab hauv qab ntawm daim duab txhua lub sijhawm. Thiab yog tias koj tsis paub meej yuav ua li cas nthuav tawm qhov no lossis thooj ntawd hauv cov ntawv sib dhos, nco ntsoov tias cov khoom siv nrog beveled bulges yuav tsum yog ntsug, thiab cov khoom nrog cov ncaj yuav tsum yog kab rov tav. Thiab vice versa.
Qee cov pob nyem du tuaj yeem ua kom sib zog me ntsis. Nkaum tiaj thiab tiaj tiaj cov ntsiab lus tsuas yog tuaj yeem pom hauv ib kab / kab, tab sis tsis sib txawv.
Thaum kawg, yog tias daim duab muaj cov khoom pom tsis meej, tso cov ntsiab lus cuam tshuam nrog nws. Lawv yooj yim dua mus sau. Thiab tawm qhov nyuaj tshaj plaws (ntuj, piv txwv) txog zaum kawg.
