Now China has been able to design sulphuric acid plants with advanced technique, high energy efficiency, environmental acceptance and good economic and social benefits.
目前我国已有能力作出工艺先进、能效高、环保合理、具有较好经济效益和社会效益的硫酸工程设计。
Direct digital synthesis is a kind of advanced technique on frequency synthesis, in this paper, the design and realized technique of DDS is given.
直接数字合成是先进的频率合成技术，给出了直接数字合成器的设计方法和实现技术。
Based on the research experience of semi-armor-piercing warhead, integrated design method for SAPW was studied by advanced engineering design method and computer technique.
文中基于半穿甲战斗部研制的经验和技术，利用先进的工程设计方法和计算机技术，完成了半穿甲战斗部集成设计方法研究。
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