回归计算中，由于资料和计算上的误差，使结果也产生一定的误差。
Due to the error of data and calculation, there are certain errors to the results in regression computation.
对异丙醇这类基体成分丰富的样品测定，采用直接上机进样测定的方法使结果不够理想，而且存在显著的系统误差。
To the isopropyl alcohol this kind of substrate ingredient rich sample, the determination method using direct caused the result insufficiently to be ideal, and the remarkable system error.
本方法既有计算量少的优点，又可进一步降低拟合谱的均方误差和使拟合结果更加合理。
The present method showed two advantages, i. e. , fewer calculations and the optimum simulation result which is rational and has least mean square error.
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