backflow ['bækfloʊ]

例句:

• However, backflow may now be creating other side effects.
  不过, 眼下回流可能正在引发其它一些负面影响.
  
• The system should be flushed before the backflow valve is installed.
  在安装回流阀之前系统应该进行冲刷.
  
• From this causes two backflow agitation efficiency not high substantial clause.
  由此引起二次回流搅动效率不高的重要原因.
  
• Use a prow shape between the ocean and the building, and remember the debris and backflow.
  来自SA