So, this paper presents a more universal characteristics of the laser diode ranging evaluation system, and studies on laser diode characteristics of radar ranging in theory and experiment.
为此，本论文给出了一种更具有普适性的激光二极管测距特性的评价体系，并在理论和实验上对激光二极管雷达的测距特性进行了研究。
By using of tipper double stars system, experiment studies on land static positioning and Marine dynamic position are conducted.
对北斗双星基本型用户机在某地区进行了海上动态、陆上静态定位试验及其短信发报功能测试。
The experiment studies on virus-free seed potato miniaturization breeding system and matching commercial potato cultivation techniques .
本文研究了冀中南地区马铃薯脱毒种薯小型化繁育体系和配套商品薯栽培技术问题。
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