An efficient numerical method is proposed for calculation of the first crossing reliability of non stationary process linear combination.
给出了非平稳过程线性组合的首次超越动力可靠度的一个有效数值计算方法。
It keeps the method of calculation rolling pieces and pass design respective - ly from making error by using method of reducing non-linear equations.
采用求解非线性方程组的方法设计孔型尺寸，避免了因轧件尺寸和孔型尺寸分别计算所造成的误差。
The properties of ADPA were calculated by the method of quantum chemistry calculation and the microcosmic mechanism of non-linear optics properties of ADPA was explained.
为了揭示adpa的非线性光学性质的微观机理，我们还应用量子化学计算方法进行了初步的理论研究。
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