Xov Xwm

Yog hais tias qhov chaw sib khi tau raug puas ntsoog, nws yuav tsum yog daim ntawv pov thawj. Yog tias tsim nyog, nws tuaj yeem ua hleb welded thiab ua tiav.

Cov ntaub ntawv los ntawm cov khoom lag luam ua tiav lawm rau hauv lub npas tsis ntim ntawm lub ntim tshuab, homogenization ntawm cov ntaub ntawv los ntawm homogenization mixing...

Txawm hais tias tib cov khoom, cov txheej txheem sib txawv ntau lawm, cov yam ntxwv ntawm lub cev ntawm cov khoom tsis zoo ib yam.