控制方程是一维非定常气体动力学偏微分方程组，用隐式中心差分结合特征线法解算。
The numerical solution of the governing equations, pertaining to one-dimensional unsteady gas dynamics, utilizes an implicit finite-difference scheme combined with the method of characteristics.
该方法既克服了期望值-差法和夏普指数法的不足，又在一定程度上避免了效用函数构造的困难。
The new method has overcomed the shortcomings of the Expectation-Variance method and Sharpe's Index method, and avoids the inconvenience of constructing utility function to a certain extent as well.
但在大坝视准线法不等精度观测中，由该基本定权公式推导的实用定权公式与测量平差书上的实用定权公式不一致。
But the practical formula for deciding weight derived from this basic formula is different from tha written in the books of survey adjustment.
利用单向应力下磁输出信号与主应力差间的关系，即主应力差法，国内外已取得了一定的成果。
Recently progresses have been made using the relationship between magnetic output and principal stresses difference under uniaxial stress.
利用单向应力下磁输出信号与主应力差间的关系，即主应力差法，国内外已取得了一定的成果。
Recently progresses have been made using the relationship between magnetic output and principal stresses difference under uniaxial stress.
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