It's analyzed and inquired into optimality design of duck propeller. Mathematical models are set up. It shows it's practicable through example.
对导管螺旋桨进行优化设计的分析与探讨，建立优化数学模型，通过实例说明其可行性。
This paper describes an efficient optimality criterion method for the optimum design of antenna structure.
本文提出了一种有效的结构优化方法——导重准则法。
A new way is carried out for design and optimality of the horn.
为超声变幅杆的设计和优化提供了新的途径。
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