Cawv ntawm cov qauv duab rau ntawm lub ntsej muag sib koom
Feem ntau, hloov qhov txawv ntawm qhov zoo nkauj geometrically nto, vim yog grooves thiab cov qhab nia piv txwv, influencethe zoo ntawm cov leeg sib xyaw. Ntawm no cov kev taw qhia txog qhov ntawm grooves thiab cov qhab nia ua lub luag haujlwm tseem ceeb. Daim duab 2 thiab daim duab 6provide ib daim ntawv tshuaj ntsuam qhov txaus / kis ntawm lub tshuab nqus hluav taws xob raws li cov qauv saum npoo av.
