The experiment shows that the stability of average background method is stronger than frame differential method.
实验表明，平均背景法的稳定性要优于帧间差分法。
The common background method dealing with the background of diffraction profile was presented to increase the efficiency of X-ray stress measurement.
为了提高X射线应力分析的效率，提出了公用背底法对衍射线进行背底扣除。
Two test methods, natural radioactive background method and decay method, used to verify the detection limit of radioactive aerosol monitors are studied.
研究了放射性气溶胶监测仪的检测方法，即天然本底检测法和衰变检测法。
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