Pob ntsia hlau yog qhov khoom lag luam zoo tshaj plaws uas hloov kev sib hloov pauv mus rau hauv cov kab sib hloov, lossis hloov cov kab tawm ncaj qha rau hauv kev sib hloov. Pob ntsia hlau yog qhov sib txuas feem ntau siv rau hauv cov khoom siv cav thiab qhov ua cav precision. Nws lub ntsiab muaj nuj nqi yog los hloov kev ua teb mus rau linear motion, lossis hloov torque rau hauv axial repetitive force. Nws tseem muaj qhov siab precision, thim rov qab thiab siab Nta ntawm kev ua tau zoo. Vim tias nws cov kev sib txhuam me me tsis kam, pob screws yog siv dav hauv ntau yam khoom lag luam thiab cov twj ntsuas zoo.
Lub pob ntsia hlau yog tsim ntawm cov ntsia hlau, txiv ntseej, pob zeb pob, ib qho kev sib txuam ua ntej, thim rov qab, thiab cov khoom siv plua plav. Nws qhov haujlwm ua haujlwm yog los hloov kev sib hloov mus rau cov lus tsa suab, uas yog ntxiv txuas ntxiv thiab txhim kho Akem ntsia hlau. Lub ntsiab lus tseem ceeb ntawm txoj kev txhim kho no yog hloov cov kabmob ntawm cov lus swb mus rau cov lus tsa suab.
