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1·Is it right that your customer sent me a secondary positive control with a donkey TRIC - anti-goat?

它是正确的，你的客户送我一个中学，与驴介电抗山羊阳性对照？

2·Some typical examples about ele tric circuit are presented and the indination of the accompanying sound system are predicted.

文中给出了实现其功能的典型电路，以及今后的伴音发展趋势。

3·The paper introduces a new method of cross measuring by (el ec tric) theodolite, a new way of cross section area computation is also presented.

介绍利用（电子）经纬仪进行横断面测量的一种新方法，并提出横断面截面积计算的一种新思路。