Cov khoom siv rwb thaiv tsev yog dab tsi?1.Cov khoom siv rwb thaiv tsev yog cov khoom siv uas tsis muaj hluav taws xob nyob rau hauv qhov tso cai hluav taws xob, tab sis tsis yog cov khoom siv uas tsis muaj hluav taws xob kiag li.In ib qho hluav taws xob sab nraud, conductivity, polarization, poob, tawg thiab lwm yam pro...
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