At last, this paper makes adequate summary of the system's design concept and implement effect, and briefly analyses the development trend of PDM and PSCM technology.

最后，本文对系统设计思想和实施效果做了适当的总结，并对PDM及产品结构与配置管理的研究和技术应用的未来发展趋势作了简要的分析和展望。

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Effect of temperature on development, survival, reproduction, population parameter and population trend index of Spodoptera litura (Fabricius) were studied.

研究了温度对斜纹夜蛾的发育、存活、生殖、种群参数和种群趋势指数的影响。

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Research on this technology will greatly improve the efficiency of diagnosis and the effect of treatment, which is also coincident with the development trend of medical image processing.

对这项技术的研究将会大大提高诊断的效率和治疗的效果，也符合医学图像处理的发展趋势。

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