Linyi shansong muaj cov kev daws teeb meem zoo tshaj plaws los ua kom tau raws li koj qhov kev thov.
Yog tias peb cov khoom tam sim no tsis yog 100% haum, peb cov engineers thiab cov kws tshaj lij yuav ua haujlwm ua ke los tsim hom tshiab.
Yog tias koj muaj ib qho kev npaj los tsim cov khoom tshiab lossis xav ua kom txhim kho ntxiv ntawm koj cov qauv tam sim no, peb nyob ntawm no los muab peb cov kev txhawb nqa.
