单词	defend the catchment
释义	defend the catchment 防排水
随便看	passivated metal nanosized powders passivated metal stripe passivated oil passivated planar junction passivated planar transistor passivated surface passivated susceptor passivated transformer oil passivated treatment passivates passivating agent passivating coating passivating dip passivating film passivating layer passivating process passivating solution passivating SURFACE passivating SURFACESchemically passivating technics passivatingtreatment passivating treatment Passivating Treatment after Chemical Cleaning passivation passivation agent