{"db_type":"WWJDREF","db_name":"国际期刊","reference_articles":[{"patent_date":"2001-06-15","unit":"Applied Surface Science","flag":"[J]","year":2001,"author":"T. Ohbayashi;T. Sawada;M. Hamaguchi;H. Miyamura","index":1,"title":"Study on the performance prediction of screw vacuum pump"}],"articles_count":1}