Pwm
pwmEmbryo ua lub luag haujlwm tseem ceeb hauv kev siv pwm. Hardness yog ib qho ntawm cov kev mob tsim nyog rau pwm pwm pwm embryos. Hardness yog qhov tseem ceeb cuam tshuam rau kev coj tsis kam. Feem ntau hais lus, ntau dua qhov nyuaj ntawm cov moulding feem, tus me dua hnav, zoo dua tus coj hnav tsis kam.
Thaum cov yas degeneration hauv cov pwm kab noj hniav, nws ntws raws cov npoo ntawm cov pwm kab noj hniav thiab cov nplais, ua rau kev sib txhuam ntawm cov npoo ntawm
pwmkab noj hniav thiab cov khoom xyaw, ua rau pwm kom swb vim hnav. Yog li ntawd, qhov kev puas tsuaj tsis kam ntawm cov khoom yog ib qho ntawm theem pib thiab kev ua tau tseem ceeb ntawm cov pwm pwm pwm. Ib qho ntxiv, hnav tsis muaj feem xyuam nrog hom, kom muaj nuj nqis, loj, thiab xa cov carbides hauv cov khoom.
Thaum ua haujlwm ntawmpwm, cov pwm yuav rov ua kom sov thiab txias dua, ua rau muaj kev ntxhov siab, txo qhov kev sib txhuam kom loj, txo qhov tseeb, uas yuav ua rau cov pwm kom swb pwm. Txias thiab txias ua kom nkees yog ib qho ntawm cov ntaub ntawv tseem ceeb ntawm tshav kub -making pwm embryo. Yog li ntawd, pwm pwm empryos thiab qee cov pwm yuav tsum muaj cov rog kub thiab txias tsis txaus.
