1. Cov txheej txheej txheej yuav tsum raug kuaj ua ntej pib ua haujlwm, thiab kev ua haujlwm tuaj yeem pib tsuas yog tom qab txhua ntu yog khiav ib txwm. NCO TSEG: Yog hais tias lub ignition tsis ua ib zaug lossis ob zaug, nws yog qhov zoo dua los qhib lub burner kiv cua ib pliag kom tawm cov roj hauv qhov cub ua ntej kev kuaj thib ob.
2. Thaum debugging thiab tswj cov cuab yeej txheej txheej, lub zog hluav taws xob tseem ceeb yuav tsum tau txiav tawm.
3. Thaum ua haujlwm woodworking tshuab, koj yuav tsum hnav khaub ncaws ua haujlwm thiab ua kom nrawm dua cov ris. Lesbians yuav tsum hnav lub hau ua haujlwm, thiab muab cov braips rau hauv lub hau; hnab looj tes, phuam kauv caj dab, thiab lwm yam. Tsis pub ua haujlwm.
4. Cov khoom siv txheej txheej txheej txheej yuav tsum muaj cov qauv, kev ua tau zoo, ua haujlwm, thiab kom lawv tuaj yeem siv thiab cov neeg ua haujlwm tshwj xeeb.
5. Shafts, cov saw, cov tawv nqaij, cov siv tawv thiab lwm yam khoom siv khiav ntawm cov khoom siv tiv thaiv thiab cov phiaj thaiv tiv thaiv.
6. Yog tias muaj qee qhov teeb meem txawv txav lossis lwm yam kev ua haujlwm tsis zoo, lub zog fais fab yuav tsum tau txiav tawm tam sim ntawd thiab lub tshuab yuav tsum nres rau kev saib xyuas.
7. Feem ntau ntawm cov khoom siv ncig yog cov nplaim taws, thiab foob pob hluav taws yuav tsum yog nruj me ntsis txwv.
