loop formation

Results: Vertebral artery was straight without tortuosity in 23 cases, mildly tortuosity in five cases, loop formation and displaced into the Luschka's joint in 4 cases.

结果：23例椎动脉直行无扭曲，5例椎动脉有轻度扭曲，4例椎动脉明显扭曲突入钩椎关节内侧。

the loop formation digital system in an circular terry knitting machine

毛圈圆纬机毛圈提花数字系统

the network in a redundant link, to avoid loop formation, and so to avoid broadcast storms.

使网络在有冗余链路的情况下避免环路的产生，避免广播风暴等。

While for RH2 type catheter, although the prolonged short arm made the loop formation a little more difficult, but the success rate of hepatic arterial catheterization is high ( 97%), so it can be used as an alternate catheter.

而RH2型导管，由于增加了短臂的长度使得成襻较困难，可是对肝动脉插管的成功率仍很高（97%）以及本文介绍的新成襻方法，该导管可作为备用导管。

Study on the simple loop formation method in relay coordination

继电保护整定计算中形成简单回路的方法