Xn.的翻译

the article makes a description of assembly spot welding processes of the center sill and underframe, and the assembling techniques for the locking device and the wooden floor as well. it is instructive to the manufacture of xn 17a flat cars.

介绍了XN17A平车的中梁组焊工艺、底架组焊工艺、锁闭装置组装及木质地板组装工艺，对XN17A平车生产具有指导意义。

based on the thought of extending the domain on which the random vector xn has uniform distribution to other sets, we construct the concept of center similar distribution ( csd), and give some related theorems. also we get two representations of csd.

而后我们基于将向量均匀分布的区域改变成其他形式集合的思想，提出了中心相似分布的概念和相关定理，相应的也给出了中心相似分布的两种表示法。

in this paper, we discuss limit theorems of exchangeable random variables { xn: n ≥ 1}, obtain random strong law and weighted sums theorems of exchangeable random variable sequences, and extend the results of paper [ 4].

本文讨论了可交换随机变量序列{Xn：n≥1}的极限定理，得到了可交换随机变量序列的随机强大数律及加权和定理，并推广了文[4]中的结果。