nonproductive operation〔名词〕非生产性操作详细»
nonproductive operation〔名词〕辅助操作详细»
辅助操作red-tape operation;auxiliary operation详细»
辅助操作non-productive operation详细»
辅助操作ancillary operation;auxiliary operation;overhead详细»
辅助操作auxiliary operation;nonproductive operation;overhead operation详细»
辅助操作nonproductive operation详细»