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。
2
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。
3
The sources for humidity, dehumidification, heating, and refrigeration are all packaged in one self-contained unit.