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。
The Earned Value Management is practical and has a wide prospect on weapon equipment development, but the limitation of the method is obvious.
指出了挣值管理方法是一种很有实际意义的项目管理方法，在武器装备研发项目中有着广阔的应用前景。
At present, the automatic filling line unit has realized in a certain amount of production. Research achievements have obvious advantages and high practical value in domestic and foreign products.
目前，已经开始自动灌装线整机的规模生产，研制成果在国内外同类产品中具有明显优势和很高的实用价值。
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