The passive form model design is basic on passive technology.
被动式形态模式是建立在与被动技术有机互动的基础上。
A method of passive location and passive location technology for single object is studied.
研究了无源定位方法，以及单目标无源定位技术。
A method of passive location and passive location technology for single object is studied.
研究了无源定位方法，以及单目标无源定位技术。
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