Output efficiency controller, projection display, infrared sensor and non-contact thermometer.
输出效率控制装置，投影式显示设备，红外传感器和非接触温度计。
A device for drop-freezing experiment was improved, which consists of the cold-cavity, thermometer, controller of temperature, recorder of signals, cold sink, and environment box.
介绍一个改进的水滴冻结实验装置，它由冷腔、冷腔温度控制、水滴冻结信号检测及记录、循环散热和冷环境箱等几部分构成。
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