First, we investigate some classic costs and efficiency evaluation models and methods about the weapon system.
首先，本文研究了武器系统费用与效能的已有评估模型和评估方法。
Efficiency evaluation of retrospect prediction shows that several methods pass the test and are efficient.
回顾性预报的效能评价表明几种方法都能通过检验，是有效的。
The recent developments on dry powder inhalers(DPIs) of methods of enhancing aerosolizing efficiency, in vitro evaluation methodologies and biopharmaceutical models are reviewed.
综述了提高吸入粉雾剂雾化性能的方法、粉雾剂的体外评价手段和生物药剂学研究方法等方面的进展状况。
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