AutoCAD 2013 ChavKev Kawm Dawb
2.8.2 Saib ntawm nthuav tawm
Raws li koj tau pom, txhua daim duab qhib muaj tsawg kawg 2 nthuav tawm, txawm tias koj tuaj yeem muaj ntau ntau, raws li peb yuav kawm thaum lub sij hawm. Txhawm rau pom cov lus qhia rau daim duab tam sim no, nias qhov khawm uas nrog tus neeg nyuam qhuav kawm.