Leveling cov neeg sawv cev tau siv dav hauv cov txheej txheej. Lawv txoj haujlwm tseem ceeb yog los txhawb kom muaj kev tsim ntawm lub tiaj, du thiab uniform txheej zaj duab xis thaum lub tshuab ziab khaub ncaws thaum ziab thiab zaj duab xis-ua txheej txheem. Leveling cov neeg sawv cev txo cov kev cai lij choj ntawm cov txheej txheem, txhim kho kev ua kom zoo nkauj thiab kev coj ua zoo, thiab txhim kho cov kev tsim kho thiab txheej txheem zoo ntawm cov txheej txheem.
Cov haujlwm tshwj xeeb ntawm cov neeg sawv cev theem
Txo thaj npoo nruj: Cov neeg ua haujlwm qib siab tuaj yeem txo cov txheej sib dhos, tso cai rau cov txheej txheem txheej thiab ntws tau zoo dua ntawm cov txheej txheem tiaj thiab du cov duab zaj yeeb yaj kiab.
Txhim kho permeability: cov neeg tswj kav dej tuaj yeem txhim kho cov porneability ntawm cov txheej me me, ua kom zoo dua rau cov txheej me me thiab txhim kho cov nplaum thiab ruaj khov ntawm cov yeeb yaj kiab txheej.
Kev txo tej yam tsis xws luag: Lub sijhawm coating tsim txheej txheem, cov neeg tswj hwm qib tuaj yeem txo cov txheej txheem thiab txhuam hniav, thiab ua kom zaj duab xis, ua kom cov yeeb yaj kiab tsim kev hnav khaub ncaws thiab ntuj. Txhim kho cov gloss thiab smortness: cov qib ua kom cov xim pleev xim rau tom qab ziab thiab sib sau cov nyhuv zoo nkauj thiab cov xim tsis muaj zog ntawm cov xim.
Kho lub tshuab ziab khaub ncaws nrawm: qee cov neeg sawv cev theem tuaj yeem cuam tshuam rau cov xim qhuav ntawm cov xim pleev xim thiab txheej txheem tswj cov xim ua kom qhuav thiab kho cov txheej txheem ntawm cov yeeb yaj kiab txheej.