Kev ntsuas thev naus laus zis thiab Khoom Siv Tshaj Tawm Qhov Tshaj Tawm

Txais tos rau kev lag luam wholesale bulk pheej yig resistivity meter thiab kev tsim tawm polarization cov cuab yeej rau muag ntawm no los ntawm kev tiv thaiv kev tiv thaiv 'meter' thiab kev tsim hluav taws xob polarization cov tuam ntxhab thiab cov muag khoom hauv Suav Teb. Txog kev sib tham ntawm tus nqi, tiv tauj peb.