Using system science methods to study the system control of pest insect population, has an obvious social significance and practical value.
以系统科学方法研究害虫种群系统的控制，具有明显的社会意义和实践意义。
Using the input-occupancy-output techniques and system science methods, this paper makes a forecast about Chinas grain output, grain import and self-support rate in the year 2030.
利用投入占用产出技术及系统科学方法，对2030年中国的粮食产量、粮食进口量及自给率进行了预测。
In combination with the design of the building automation system for Jiangxi Provincial Science Museum, the author describes the principal concept and design methods of the building automation system.
结合江西省科学技术馆楼宇设备自动化系统设计，阐述楼宇设备自动化系统基本概念及设计方法。
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