中文摘要：

利用Y→△电导等效转换公式，将各边电阻皆相等的n级三角梯形电阻网络简化为1级三角形电阻网络，其腰边电阻为nr，底边电阻递推通式为Rn=αQn-1（m-β）-βP^n-1（m-α）^-Q^n-1（m-β）-P^n-1（m-α）。

英文摘要：

By using the Y→△ conductance equivalent transformation formula, we simplify the regularly-connected n-level triangle ladder resistor network with the same resistance in each branch circuit into the one-level triangle resistor network. Whose waist edge resistance is nr and whose recursion formula for the bottom edge resistance is Rn=αQn-1（m-β）-βP^n-1（m-α）^-Q^n-1（m-β）-P^n-1（m-α）.