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翻译
  • reciprocating vacuum pump

    • 英 [riˈsiprəkeitiŋ ˈvækjuəm pʌmp]
    • 美 [rɪˈsɪprəˌketɪŋ ˈvækjuəm pʌmp]

    释义

    • 往复式真空泵