词汇	back mutation
释义	back mutation 复原突变,反突变,回复突变
随便看	forged steel forged-steel forged steel backup roll forged steel back up roll forged steel brake disc forged steel die forged steel flanges made by advanced machines forged steel for hull-structural forged steel for hull-structure forged steel for ship machinery parts forged steel magnet forged steel pipe union FORGED STEEL PISTON CHECK VALVES forged steel roller forged steel rolls for hot rolling forged steel round bar forged steel shaft Forged steel socket welding fittings Forged steel threaded pipe fittings forged stem bar forged stocks forged technology forged tool Forged Tool Society forged trade mark