return bend

• 1. 回弯头: return elbow | return bend | close return bend | tube turn
• 2. 回弯头箱: return bend header
• 3. 回转弯头: return bend

更多释义

• 1.将回弯头分解为直管段和回弯两部分。
  The elbow may be resolved into straight section and a bend.
  dict.yoduao.com
• 2.回弯压力降除考虑回弯头的局部阻力外，还包括相连直管段受回弯影响而增加的压力降。
  The additional frictional pressure drop for vertical tubes due to its connection with the bend was accounted into the frictional component due to return flow.
  dict.yoduao.com

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