Not just an added reinforcing ring, this unique pre-compression design compensates for expansion forces generated from normal tapered pipe thread joint make-up.

不仅仅增加了加固环，这种独特的预压缩结构能够抵消常规锥形管道螺纹连接结构所会产生的膨胀力。

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A uniformly charged ring is a basic model in electromagnetics and applications, and it is important to study spatial distribution of electric field and electric potential generated by it.

均匀带电细圆环是电磁学理论及应用中的基本模型，研究其产生的电场在空间的分布具有重要意义。

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The numerical results show that the ring targets or spiral waves generated by cardiac action potential affect the cardiac rhythm greatly.

数值分析结果表明，心肌动作电位形成的靶环波和螺旋波对心脏节律影响较大。

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