美国人民想要他们的孩子获得优质的学校教育，想他们的家人拥有安全的生活环境，想他们自己都有好的工作。
Americans want great schools for their children, safe neighborhoods for their families and good jobs for themselves.
该文研究了在获得噪声频谱基础上，使用非线性优化方法获取雷达优质工作频率或频段，实现高频雷达工作频率在线实时优化选择。
In this paper, researched into the method of nonlinear optimization for obtained optimal HF radar work frequency, finished to optimize HF radar work frequency on-line real-time.
随着高炉大型化对球团矿的要求日益提高，获得较低还原膨胀率的优质球团矿是冶金工作者追求之一。
Because of the large-scale blast furnace, the request on pellets are constantly increasing, To get lower reduction swelling and quality of pellets is one of the pursuit of metallurgy workers.
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