The paper discusses the factors which effect the measurement precision and the special measurement environment in oral cavity, and some methods for reducing errors and error analyses are also given.
文中讨论了口腔这一特殊的测量环境和一些影响测量精度的因素，在实测中摸索了一些减小误差的方法，最后对测量误差作了分析。
Now it has been replaced by the gas chromatography, improving the working environment for workers, speeding up the analysis and reducing the error.
采用气相色谱分析法，不仅改善了工人的工作环境，而且提高了分析的速度，减小了分析误差。
Now it has been replaced by the gas chromatography, improving the working environment for workers, speeding up the analysis and reducing the error.
采用气相色谱分析法，不仅改善了工人的工作环境，而且提高了分析的速度，减小了分析误差。
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