Lub zaus hloov pauv tau tsim los ntawm ntau qhov khoom siv hluav taws xob, thiab kev hloov qee yam cuam tshuam nrog cuam tshuam nrog kev siv thiab saib xyuas. Yog li, txhawm rau tiv thaiv kev saib xyuas, 5 ntu tseem ceeb hauv qab no yuav tsum tau hloov tas li. Cia peb kawm paub ntau ntxiv nrog cov khoom lag luam inverter ...
Nyeem ntxiv