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back siphonage短语解释_back siphonage词组用法_back siphonage短语词组_沉淀汉英词典
沉淀汉英词典

back siphonage

B 开头单词

短语词组

    短语

  • back -siphonage flow 虹吸回流
  • Back -siphonage test 虹吸测试
  • Back Siphonage Backflow Vacuum Breakers 倒虹吸回流真空关闭阀
  • siphonage back flow 虹吸回流
    • 返回 back siphonage