Tus naispee-sib nqus dhau ntawm cov sib nqus sib nqus yog qhov tseem ceeb hauv ntau yam kev lag luam xws li kev siv mining, rov ua dua tshiab, thiab ua khoom siv. Cov tshuab haib no yog tsim los tshem cov hlau tool thiab lwm cov kab mob ferrouss los ntawm cov khoom siv conveyor, kom muaj cov khoom siv

Cov lus qhia Niaj hnub no cov toj roob hauv pes muaj txiaj ntsig zoo, tswj hwm tus tswj hwm zoo yog qhov tseem ceeb. Ib qho ntawm cov khoom tseem ceeb hauv kev ua tiav qhov no yog kev siv cov khoom siv tshuaj ntsuam xyuas. Qhov tseem ceeb ntawm kev tshuaj ntsuam cov txheej txheem hauv kev lag luam ntau yam tsis muaj kev ua tau zoo, raws li lawv p

Cov ntsiab lus ntawm kev ua haujlwm tiag tiag thiab tuav ntawm cov ntsiab lus noo noo uas cuam tshuam zoo thiab ua tau zoo ntawm cov khoom kawg. Cov dej noo siab yuav cuam tshuam cov kev ua tau zoo ntawm cov ntaub ntawv hauv ntau yam kev siv, ua kev sib tw hauv kev cia,