The chief lesson this teaches us is that making new equipment affordable has become a major problem in the research and development (R&D) process of any major new piece of military hardware.
这给我们的主要教训就是：能承受新装备的开销已成为研究开发军事新硬件设施过程中的主要问题。
The R&D of industrial generic technology is the major means for the technologic rivalry before the enterprises market games trend to competition.
产业共性技术研发是企业间市场博弈走向竞争前技术角逐的主要手段。
The application of diamond has always been a major R & D target in abrasives industry.
在磨料磨具行业中，超硬材料金刚石的应用一直是行业研究、关注的问题。
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