Kev teeb tsa thiab kev saib xyuas kom tau rau seismic txhawb nqa
Lub installation ntawm cov seismic kev txhawb yuav tsum ua raws cov qauv tsim nyog ua raws li peb ua kom lawv tuaj yeem muab kev tiv thaiv siab tshaj thaum lub ntiaj teb. Nyob rau hauv cov nqe lus ntawm kev saib xyuas, nws yog ib qho tsim nyog los kuaj xyuas cov kev ruaj khov thiab kev ncaj ncees ntawm cov nyhuv tiv thaiv vim tias kev kho mob corrosion lossis loosening thaum siv ntev.
