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vacuum package [英] [ˈvækjʊəm ˈpækɪdʒ] [美] [ˈvækjʊəm ˈpækɪdʒ] [短语] 真空包装 词频排名 55049/55435 学习人数 8 难度等级 10/10 认知比例 66.67% 例句 Zhengtai machinery group has specialized vacuum package machines and package bags for 12 years. 山东正泰机械集团从事食品机械及真空包装袋蒸煮袋已经12年 a new technique for vacuum package is proposed in the paper. 提出了一种真空密封方法的设想。 Higher volatile compounds existed in dried mussel with vacuum package than in ordinary package samples. 普通包装和真空包装样品气味差别主要在于高挥发性组分 助记 联想 vacuum cleaner
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