本文提出了一种有效的结构优化方法——导重准则法。
This paper describes an efficient optimality criterion method for the optimum design of antenna structure.
导出了在位形空间中，求解对应无阻尼问题有等导重特征值的弱阻尼陀螺特征值问题的直接摄动法。
The solution of eigenproblem of slightly damped gyro-systems by the direct perturbation method in configuration space;
研究和应用非接触式的地球物理 超前探测技术，准确及时地预报掘进前方隐伏的导、含水构造，对于煤矿的防治水 工作与安全生产具有十分重要的现实意义。
The development of a new geophysical technology to detect buried water conducting passages and to predict water-bearing structures accurately and instantaneously is of great operational importance.
研究和应用非接触式的地球物理 超前探测技术，准确及时地预报掘进前方隐伏的导、含水构造，对于煤矿的防治水 工作与安全生产具有十分重要的现实意义。
The development of a new geophysical technology to detect buried water conducting passages and to predict water-bearing structures accurately and instantaneously is of great operational importance.
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