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。

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It provides basic technical parameters for producing crisp fruit-vegetable slice with vacuum low -temperature frying technology. Experiments were done with self-made small scale test-bed.

利用自制的小型实验台，为真空低温油炸技术规模化生产果蔬脆片提供基本的工艺操作参数。

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It provides radical technical parameters for producing fragile fruit -vegetable slice with vacuum low-temperature frying technology. Experiments were done with self-made small scaled test-bed.

利用自制的小型实验台，为真空低温油炸技术规模化生产果蔬脆片提供基本的工艺操作参数。

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