This paper modified a quasi dimensional model and utilized it to study theoretically the combustion variations in spark ignition engines.
本文改进了一个火花点火发动机的准维计算模型，并对燃烧的循环变动进行了理论计算研究。
In this paper, we study theoretically infinitesimal element method for calculation of stress birefringence in polarization maintaining fibers.
本文研究了计算保偏光纤中应力双折射特性的微元算法，对其计算值进行了理论验证。
Theoretically study the expert system (es), Decision Support system (DDS) respective specialty and their common characteristics.
从理论上研究了专家系统(es)、决策支持系统(DDS)各自的特点与共性。
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