Txhua yam kev kho vajtse stamping qhov chaw tu cov txuj ci
Kev ntxuav ntawm cov hlau stamping feem ntau yog raws li kev tshem tawm roj. Peb yuav tsum ntxuav cov hlau stamping qhov chaw sai thiab zoo li cas? Cia peb saib.
Raws li kev sib txawv ntawm kev tu, nws tuaj yeem muab faib ua tshuaj ntxuav thiab ntxuav lub cev:
Kev tu tshuaj lom neeg: cia siab rau qhov kev txiav txim ntawm cov tshuaj tiv thaiv, kev siv tshuaj lossis lwm cov kuab tshuaj kom tshem tawm cov av ntawm qhov chaw ntawm cov khoom yog hu ua tshuaj ntxuav, xws li siv ntau yam inorganic lossis organic acids kom tshem tawm cov xeb ntawm qhov chaw. khoom, nplai, nrog oxidant kom tshem tawm qhov chaw ntawm cov khoom stains.
Kev tu lub cev: kev siv cov tshuab, acoustics, optics, hluav taws xob, thermal cov hauv paus ntsiab lus, tso siab rau lub luag haujlwm ntawm lub zog sab nraud, xws li kev sib txhuam ntawm cov tshuab, ultrasonic tu, tsis zoo siab, siab cuam tshuam, ultraviolet lub teeb, chav thiab lwm txoj hauv kev kom tshem tawm cov av. ntawm qhov chaw ntawm qhov khoom yog hu ua kev ntxuav lub cev.
