Txhawm rau kom muaj kev nyab xeeb thiab ruaj khov ntawm tus pej thuam. Tom qab kev tsim kho ntawm cov hlau ntauwd tiav, cov kev sim thiab kev tshuaj ntsuam xyuas tau ua tiav los xyuas qhov zoo ntawm nws cov qauv tsim thiab kev tsim kho thiab xyuas kom meej tias nws ua raws li cov qauv thiab cov kev qhia tshwj xeeb. Cov txheej txheem ntawm kev sim ntauwd suav nrog kev sim ua tiav thiab kev ntsuam xyuas ntawm tus pej thuam cov qauv, cov khoom siv, vuam zoo, kev kho los tiv thaiv corrosion thiab lwm yam.

Niaj hnub no, peb tau ua lub rooj sib tham ntawm 50 meter 3 leged kev sib txuas lus ntauwd ntawm Congo cov neeg siv khoom. Tsis muaj teeb meem nyob rau hauv lub rooj sib tham. Qhov no txhais tau tias cov khoom yuav raug xa mus rau cov neeg siv khoom sai sai thiab peb vam tias lawv txaus siab rau peb cov khoom. Peb tos ntsoov rau lub sij hawm ntev kev koom tes nrog lawv.