Kab tshuab viscosity rau hais tawm yog qhov khoom sib thooj leej twg uas pab koj paub tias cov dej no yog ntau los sis ntau dua. Qhov khoom no pab cov neeg nyob rau hauv qhov kev lag luam los ntawm qhov kev lag luam no mus rau qhov kev lag luam ntxiv, kom lawv tuaj yeem pom qhov kev npaj ntawm lawv cov khoom. Cov dej uas ntau dua los sis ntau dua yuav cuag rau kev tsis zoo ntawm kev tsim khoom. Tam sim no, thiab nrog qhov khoom sib thooj uas tuaj yeem muab mus txhawb tau, cov neeg ua haujlwm tuaj yeem paub qhov ntau los sis ntau ntawm cov dej tam sim no thaum lawv nyob rau ntawd. ZONWON muab qhov khoom sib thooj uas tuaj yeem muab mus txhawb tau automatic viscometer kom cov kev lag luam tuaj yeem paub tias lawv cov khoom muaj qhov zoo tshaj plaws.