词汇	善不
释义	善不 shàn bù同善否。不，通否。
随便看	grounding fault diagnosis grounding fault line selection grounding fault protection grounding faults grounding fixed contact grounding for lightening grounding for lightening method grounding for lighting grounding for lightning grounding form grounding frame grounding function analysis grounding gap breaker substation grounding grid grounding grid defect grounding grid of hydropower station grounding grid resistance grounding grids grounding impedance grounding inner shield grounding inspection of rotor windings grounding installation grounding insulation grounding inversion grounding jumper