Cov riam ntawm daim ntawv straw tej tshuab yog ntsia ntawm lub ntsia hlau, thiab lub hau ntswj ntawm ib kawg ntawm cov menyuam tuaj yeem raug rho tawm, thiab rab riam tuaj yeem raug rho tawm los ntawm qhov ntawd. Qhov no yog lub installation ntawm cov riam saum toj kawg nkaus. Tseem muaj cov hauv qab riam, lub installation ntawm cov riam hauv qab, koj yuav tsum xam qhov dav yuav raug txiav, xaiv cov khoom siv tau. Lub installation ntawm lub hauv qab riam yog suav cov kab txiav dav, thiab kev teeb tsa tau yooj yim.
Ntawv ntawv tshuab, ntawv straw tshuab, tsis siv neeg ntawv straw tshuab
