1. Kev ua haujlwm hnyav heev
Cov teeb meem tsis tu ncua xws li cov xim shading thiab cov cim ntaub tshwm sim; rov kho dua thiab kho tsis tau raws li cov txheej txheem txheej txheem, thiab dyeing pass tus nqi tsis tu ncua qis dua 80%, cuam tshuam ncaj qha rau kev xa khoom.
2. Cov nqi kho mob ntau dhau
Cov nqi kho txhua xyoo ntau dua 20% ntawm tus nqi yuav khoom ntawm lub tshuab tshiab; Cov khoom tseem ceeb-xws li cov tub ntxhais tsav tsheb thiab cov tshuab tswj- feem ntau tsis ua haujlwm, thiab lub sijhawm poob rau kev kho dua li lub sijhawm tsim khoom tiag tiag.
3. Kev siv hluav taws xob ntau dhau
Cov cawv sib piv yog nyob deb tshaj li cov qauv kev lag luam, nrog rau cov dej, hluav taws xob, thiab roj siv ntau dua 40% siab dua li niaj hnub lub zog- qauv zoo; ntev - lub sij hawm ua hauj lwm cov nqi hluav taws xob nyob deb tshaj cov khoom seem ntawm tus nqi.
4. Tsis muaj kev ua raws cai thiab yoog raws
Cov cuab yeej ua tsis tau raws li qhov tseeb kev tiv thaiv ib puag ncig thiab kev nyab xeeb ntawm chaw ua haujlwm thiab tsis tuaj yeem ua raws li cov kev xav tau ntawm cov khoom siv tam sim no rau me me -batch, ntau- ntau yam xaj; tus nqi ntawm retrofitting deb tshaj qhov tsuas yog hloov lub tsev nrog lub tshuab tshiab.
