Cov nplaum nas nplaum yog ua los ntawm cov kua nplaum tshwj xeeb nrog cov viscosity muaj zog thiab txawm tias kev faib tawm. Cov nas thiab lwm yam kab tsuag tuaj yeem ntes tau yooj yim dua thaum ua kom koj lub tsev zoo, huv si thiab noj qab nyob zoo.
Nws yog qhov yooj yim heev rau kev siv, tsuas yog muab qee cov kab rau hauv nruab nrab ntawm cov nas tsuag, thiab tom qab ntawd muab tso rau hauv qhov chaw uas nas feem ntau tuaj thiab mus. Lub rooj tsavxwm nplaum nplaum no tuaj yeem muab tais rau hauv cov duab sib txawv: "ib qho", "90 degree" puab, "U" puab thiab "lub qhov ncauj" zoo raws li qhov chaw sib txawv, koj tsis tas yuav kov cov kab tsuag tom qab ntes lawv, tsuas yog muab lawv pov rau hauv lub thoob khib nyiab ua ke thiab nws yooj yim mus ua.
