Hloov cov pa roj txhuam: Qhov no yog qhov teeb meem yooj yim los daws cov teeb meem ntawm kev tsis paub cov tshuab uas siv tau, nrog tus nqi tsuas yog 2 yuan.
Tuav fais fab sib: Yog tias txoj hlua hluav taws kub hlawv thiab ua rau lub tshuab txiav kom tsis txhob khiav, nws yuav tsum tau rov ua dua.
Kho cov kev ntxhov siab ntawm cov kev siv zog sib xyaw thiab siv ua kom nruj ntawm cov kev siv tshuab synchronous thiab txoj siv tawv kom tsis txhob muaj cov tshuab cua.
Kuaj thiab hloov cov khoom siv: rau cov teeb meem xws li cov teeb meem laser, nws yog qhov tsim nyog los xyuas lub teeb dej laser thiab kev tiv thaiv dej tsis zoo thiab hloov lawv yam yog tsim nyog.
Kho cov tsis: Yog tias lub cav txiav tsis tau teeb tsa kom raug, qhov tseeb tsis tas yuav rov pib dua.
Hloov cov chaw uas tsis zoo: rau cov teeb meem xws li cov suab nrov tsis muaj zog thiab cov suab nrov ntau, nws yog ib qho tsim nyog los tshuaj xyuas thiab hloov cov khoom puas
