One of the existing problems of the mine at present is : when the south open stope is over in 2005 , where does the open north stope start for the sake of optimizing economic benefit and social benefit and environmental benefit of the mine facing to this problem , based on the large number real data of mine , in view of fuzzy attribute and complexity attribute existing in mine production , this paper applies fuzzy multi - attributes decision method to a lot of feasible technology , economy rational for schemes to appraise to proposes 当前矿山生产存在的问题之一是：南露天采场将于2005年开采结束，何处启动北露天采场，才能使得矿山经济效益、社会效益、环境效益保持最优化?针对铜绿山铜铁矿北露天矿何处启动最优这一问题，本文在收集大量铜矿山生产实际资料基础上，针对矿山生产中存在的模糊性和复杂性，提出运用模糊多属性决策方法对多个技术可行、经济合理方案进行评价。
Technology is practicable in this case , yet while your pc link onto the internet , the pc may be infected with hacker or virus further to jeopardize the card reader application inside of your computer as well as the safety of the related medical information . therefore , it s better to avoid using the same computer without safety protection to link to the medical health insurance network and internet 技术可行，但个人电脑连接internet后，将可能遭受骇客入侵或电脑病毒感染，并可能危害个人电脑内读卡机应用及相关医疗资讯之安全，因此，最好避免连接健保医疗网与连接internet共用同一部未受安全保护之个人电脑。
Technology is practicable in this case , yet while your pc link onto the internet , the pc may be infected with hacker or virus further to jeopardize the card reader application inside of your computer as well as the safety of the related medical information . therefore , it s better to avoid using the same computer without safety protection to link to the medical health insurance network and internet 技术可行，但个人电脑连接internet后，将可能遭受骇客入侵或电脑病毒感染，并可能危害个人电脑内读卡机应用及相关医疗资讯之安全，因此，最好避免连接健保医疗网与连接internet共用同一部未受安全保护之个人电脑。
On the whole , the main loop draws on the design idea of the full - wave boosting c - dump converter and meets design requirements of power converter . the control loop takes a high speed , high performance tms320lf2407 dsp chip as the control center , so it simplifies peripherals . the control software takes place of hardware circuit to implement the majority of functions , which is designed by means of c and assembly mixed programming 从整体上看，本文设计的主回路充分借鉴了全波升压式c一dump变换器的设计思想，技术可行，满足了电力转换器的设计要求;控制回路的设计以一片高速高性能的tms320lf2407dsp芯片为核心，外围配置简单，控制软件采用c和汇编语言混合编程的设计方法，取代硬件实现了大多数功能，基本达到了单芯片控制的设计目标。
