The mathematics model of its transmitting-system is given out.
给出了软件化雷达发射系统的数学模型；
According to the law of conservation of mass, the mathematics model of Modified-Atmosphere Packaging (MAP) is educed.
根据质量守恒定律和果蔬采后呼吸生理，推导出薄膜气调包装(map)的数学模型。
The mathematics model of travelling-wave ultrasonic motors is studied in this paper and the equivalent vibrating model is built.
对行波超声电机的控制模型进行了研究，并建立了等效动态振动模型。
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