Lub U tube viscometer yog ib qho khoom uas muaj kev tswj hwm siab uas pom qhov viscosity ntawm lub zis. No hu ua viscosity. Tsim nyog nco txog qhov koj yuav tsum sau honey thiab dej. Honey yog ib qho zis uas muaj kev tswj hwm siab thiab dhau los ntau npaum li cas, tab sis dej yog ib qho zis uas muaj kev tswj hwm tsis siab thiab tsis muaj kev tswj hwm rau qhov dhau los. Koj paub tias lub zis no yog li cas yog qhov txaus rau ntau qhov kev lag luam, xws li kev lag luam noj thiab kev lag luam kho thiab kev lag luam oil; ZONWON yog ib qho uas nyob rau sab thaum ntawm U Tube Viscometers uas paab txais cov neeg tsiab thiab cov kws tshaj xyuas kom paub tias lawv yuav tau suav raws li qhov tseem ceeb rau lawv qhov kev ua haujlwm. Nrog cov khoom no, lawv tuaj yeem paub tias lawv cov khoom yuav muaj kev zoo ib yam thiab muaj qhov zoo tshaj plaws.