随机模拟结果表明，给出的近似方法是有效的，抽样检验方案是合理的。
Simulation results show that the approximation method is efficient and the derived sampling inspection plans are reasonable.
本文提出一种近似重要性抽样方法来计算结构可靠度。
In this paper, the approximate importance sampling technique is presented for structural reliability evaluation.
在理论方法上，应用了计算机模拟，并进行验证、近似计算以及抽样性能分析。
In arguine, we resort ot electronic computer's analogue, approximate calculation and the judgement of the method's efficiency in practical use.
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