Feature 1:Cov zawv zawg zawv zawg thiab cov zawv zawg thaiv yog nyob rau hauv kev sib cuag nrog ib leeg los ntawm cov khoom, yog li kev co me me, uas yog tsim rau cov khoom siv nrog precision yuav tsum.
Feature 2:Vim hais tias ntawm qhov point-to-surface contact, qhov kev sib txhuam tsis sib haum yog qhov me me, thiab kev txav zoo tuaj yeem ua tau kom ua tiav qhov kev ua haujlwm siab ntawm cov cuab yeej tswj, thiab lwm yam.