介绍了高精度片式NTC元件测量分选的关键技术；
The key techniques of high precision measuring and classifying about SMT NTC is analyzed.
介绍采用基于免疫进化算法的神经网络对雷达信号分选的实现方法。
The paper realizes the sorting of radar signal by the ANN based on immune evolutionary algorithms.
本文对影响干式强磁分选的主要因素磁场强度和极距进行了试验研究。
Main factors of magnetic intensity and polar distance influencing the dry high magnetic separation were studied in this paper.
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