expanding plug,expansion plug

This method is based on our blowup sampling method of algebraic curves, which solves the difficult problem of sampling around singular points in essence.

这种逼近建立在所提出的代数曲线胀开采样的基础上,这种胀开采样算法从本质上解决了奇异点周围采样难的问题。

Research on service life of wholly bonded prestressed cable when corrosion expansion cracking;

全长粘结式预应力锚索锈胀开裂时服务年限研究