英语词汇“upper drum”的读音、翻译、释义、用法及例句-智慧网

词汇	upper drum
释义	upper drumupper drum1.■上磁鼓;上卷盘
随便看	surface current classifier surface current density surface curvature surface-curvature apparatus surface cut surfaced surface damage surface-damage field surface damage field surface dangling bond energy level surface data surface decarburation surface decarburization surface decoration material surface decorative material surface defect surface defects surface deformation surface dehumidifier surface density surface density method surface density of states surface depletion layer surface deposit surface depression

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