介绍了钢管接触法超声波探伤缺陷定位方法——手指蘸油触摸法，分析了利用此种方法进行缺陷定位的理论依据。
The author introduces a pipe defect locating method by contact type ultrasonic detection — finger oil dipping touching method and analyses the theoretical basis of defect locating by this method.
利用很少的资料，提出一种求解97%保证率矿井水可利用水量的计算方法，并利用此种方法对阜新金山煤矸石热电厂的主水源进行了水资源论证。
A method, with a guaranteed rate of 97%, to calculate mine water available was proposed and used in the water resources demonstration of main source of Jinshan coal gangue power plant in Fuxin City.
结论：能利用计算机模拟出NAT2的可能结构，并可作出一定的分析和预测，此种方法可用于NAT 2基因多态性的分析。
Conclusion: the possible structure of NAT2 was simulated using computer, analysis and forecast was also carried out, the method was feasible to genetic analysis of NAT2.
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