DR
Dav:
DR cov twj siv hluav taws xob yog qhov tsim kho lubrication tshuab, nias lossis depressurized tsau - Ntim lubrication tshuab. Txhua qeb loj muaj ntau tus nominal ntws cov nqi, cov peev xwm ntawm cov peev xwm ntawm cov khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob tshwj xeeb. Siab hloov (xaiv tau khoom) tuaj yeem ntsia tau nyob rau hauv lubrication twj tso ua ke raws li qhov xav tau. Yog tias tus tswv tsev tshuab tsis muaj PlC, tus coj lubrication twj tso zis nruab nrog cov maub los yuav tsum tau xaiv.
