阐述了环境空气温度补偿电阻减小测量误差的原理。
Also principle of test error reducing by ambient air temperature compensating electrical resistance is expounded.
文章还对如何减小测量误差，提高辨识精度进行了研究。
How to minish measure error and enhance identification precision was also studied in the paper.
采用数字锁相技术从噪声中提取有效信号，以减小测量误差。
The digital lock-in technique is used to rather extract the effective signal from the noise and reduce the measurement error.
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