虽然以往的研究比较深入，但却缺乏一定的系统性和综合性，且由于热岛效应的地域特征明显，研究成果往往普遍缺乏操作性和指导意义。
Though deep enough, former research is lack of system and integrity and the research result is lack of universal operation and guide significance due to the obvious local characteristics of UHI.
针对表面安装式永磁同步电机，给出了电机解耦模型，分析了电枢绕组的电感饱和效应，提出了一种判断初始转子位置的综合性方法。
A novel initial rotor position estimate method is proposed on the surface mounted permanent magnet synchronous motor (PMSM), which is based on the PMSM de-coupled model analysis.
该方法把高射转化为平射，把综合性的毁伤效力射击试验分解为单项的命中率试验和终点效应试验，避免了高射试验所需要的大型摄影经纬仪、弹道相机等稀有的贵重仪器。
The utilization of many large costly and rare implements needed in the test of high-angle fire, such as the photograph theodolite, ballistic camera etc, are avoided by using the method.
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