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bellows expansion seal是什么意思，bellows expansion seal的翻译，bellows expansion seal音标、读音、用法和例句_英语字典
英语字典

bellows expansion seal

B 开头单词

基本解释

  • [物理学]伸缩膨胀密封

专业释义

    物理学

  • 伸缩膨胀密封