中文摘要：

本文采用四引线法测量了Bi2223带材临界电流沿长度方向的分布，采用正态分布、对数正态分布、威布尔分布和最小极值分布对临界电流分布进行了拟合检验，确定了临界电流的最优统计分布模型．

英文摘要：

In this paper the critical currents of Bi2223 tapes along the length direction have been measured with the four-probe method, and the statistical distribution of the critical currents has been fitted with Normal, Lognormal, Weibull and Minimum Extreme Value Distribution, then the optimal statistical distribution of critical currents is concluded.