1.Txoj kev ua kom tiav koj cov kev xav tau maus taus 2.Cov thawb cov kev txwv ntawm qhov ua tau zoo thiab tus nqi
1. Tsim thiab tsim los siv cov thev naus laus zis tshiab 2. 2.Muaj nrog qhov siab tshaj plaws kev nyab xeeb thiab kev ntseeg tau nyob hauv siab
1. Cov hom carburetors siv rau Kev Tsav Tsheb lossis ATV 2.Ntawm 20 xyoo kev ua haujlwm nyob hauv kev siv tshuab thiab cov khoom lag luam.
Tooj liab-iav foob bonds insulator, davhlau ya nyob twg ncej chaw electrode ua ke; paub tseeb tias yuav tsum muaj tag nrho cov nqi hluav taws xob ntawm qhov sib txawv;...