这样，安装在红外光焦点运动轨迹上的热释电敏感元件被红外光焦点不断扫描而产生自主采样的热释电信号。
So, the pyroelectric sensor that is located on the moving track of the infrared focus is scanned by the infrared focus signal continuously and generates the autonomous sampling pyroelectric signal.
分析了锅炉或热油炉中，影响砂光粉喷燃火焰运动轨迹的主要因素；
The main factors which affect the path of pulverized wood dust firing in steam boiler or hot-oil boiler are described.
球的运动轨迹模拟光的反射。
Simulation of the trajectory of the ball of light reflection.
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