单词	return bend
释义	Return bend a pipe fitting for connecting the contiguous ends of two nearly parallel pipes lying alongside or one above another. See also: Return return bend return bend [ri′tərn ‚bend] (design engineering) A pipe fitting, equal to two ells, used to connect parallel pipes so that fluid flowing into one will return in the opposite direction through the other. return bend return bend A pipe fitting, 1 or a preformed piece of tubing which provides a 180° change in direction.
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