为了达到天线电性能指标要求，选用双层微带贴片并两点馈电的层叠结构。
Two piece of microstrip antennas are combined so as to the index of the antenna to be satisfied.
本文介绍了超低速、宽高速、高精度电液伺服马达的性能指标、结构特点、设计方法和试验研究。
This paper describes performance indexes, structure features, design method and experimental investigation of electrohydraulic servo motor with super-low-speed, wide speed control and high precision.
根据车辆动力性能指标要求，对轮式车辆电驱动系统进行了参数匹配设计。
The parameter value of the electric driving system is chosen according to the desired dynamic performance of Wheeled Vehicle.
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