Unique design is fully self-contained - no external refrigeration or heating apparatus needed.
采用自足式的独特的设计-无需额外的制冷或加热装置。
Based on the thermoelectric refrigeration principle and PID parameter self-tuning control technique, a temperature controller for semiconductor laser's environment test is designed.
基于热电制冷原理和PID参数自整定理论，本论文设计了一种半导体激光器环境的温度控制仪。
The sources for humidity, dehumidification, heating, and refrigeration are all packaged in one self-contained unit.
湿度，除湿，加热和制冷源都包含在一个整装式设备中。
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