通过改变汽蒸时的蒸汽压力和汽蒸时间，然后用白度仪测馒头白度值，最终确定提高馒头白度的最佳汽蒸压力和汽蒸时间。
By changing the steam pressure and The Times of steaming at the time of the steaming, to make the steamed bread respectively, and mensurate the whiteness.
参考白度计的校准方法对铅芯浓度仪的校准方法进行了研究。
And its calibration method study took that of the whiteness meter as reference.
参考白度计的校准方法对铅芯浓度仪的校准方法进行了研究。
And its calibration method study took that of the whiteness meter as reference.
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