elbow bend

基本解释

That is size head directly meet up behind the elbow bend.
那就是大小头后面直接接向上弯曲的弯头。
Crackings occurred three times in elbow bend since one domestic long distance gas transportation pipeline came to used in 1993.
国内某长距离煤气输送管道于1993年投入运行以来，先后三次在管道弯头部位出现裂纹，导致煤气泄漏。
Leather cap type pig has higher abrasion during pigging gas steel pipeline. Furthermore, various elbow bend and tee joint need different suitable length pig or else easy to cause pipeline clog.
在燃气钢质管道清管过程中，皮碗式清管器受到的磨损较大，而且管道中各类弯头和三通件要求清管器的长度合适，否则容易造成卡堵。

Debby finally blew ashore Tuesday afternoon near Steinhatchee in the Big Bend area, the crook of Florida's elbow.
MSN: Debby aftermath: Flooded homes, busted roads