1. Cov nplua nuj cov ntaub ntawv tawm
Nws yog qhov tsis lees paub tias qhov txwm lub hlis-tig hluav taws xob ua hluav taws xob feem ntau tsis muaj cov ntaub ntawv qhia ntau, yog li nws tsis yooj yim kom paub lawv cov kev ua haujlwm tshwj xeeb ntawm qhov chaw, tshwj xeeb tshaj yog thaum qhov txhaum tsis yooj yim los kuaj thiab tshem tawm, thaum lub sijhawm ntse lub sijhawm tig hluav taws xob actuator Cov cuab yeej tuaj yeem daws cov teeb meem no, nws tsis tuaj yeem tsuas yog saib xyuas kev ua haujlwm, tab sis tseem ua kom pom cov lus qhia ntau los ntawm LCD npo.
