Hlau xaim kos duab ntawm kev kho deg

Cov teeb duab xov hlau: xaim kos duab yog txoj kev kho kab hlau yog cov kab ua ke ntawm cov khoom ua haujlwm kom ua tiav cov txiaj ntsig zoo nkauj. Raws li qhov sib txawv ntawm cov kab tom qab kos duab, nws tuaj yeem subdivided ua kev kos duab ncaj qha, random kos duab, kauv, kauv, kauv thiab lwm yam. Kev kho cov xaim hluav taws xob yog qhov kev nyiam ua tau zoo vim tias nws tuaj yeem siv cov khoom siv hlau, nrog rau cov khoom siv hluav taws xob ntxiv, thiab lwm yam.

IKS PVD lub tuam txhab, cov cuab yeej txheej tshuab, DLC Txheej txheej tshuab, PVD Lub Tshuab Nqus Tsev, Txoj Kev Ciav-Ntsiab muaj. Tiv tauj peb tam sim no, e-mail: iks.pvd@foxmail.com