The principle of kinds of measuring probe was analyzed, and elementary diagram and site installation drawing were compared for better understanding.

文章对各种测量探头的原理进行了分析，理论结合实际，将原理图和现场安装图进行对照，通俗易懂。

In this paper some results are reported upon the decision of the evenness by elementary divisors, in accordance with the state diagram theories of linear automata.

本文利用线性自动机的图型理论，给出一些由初等因子组判定奇偶性的结果。