initial ph value

常见例句

双语例句

• Increasingthe initial PH value in the range of 4-7 had no obvious effect to alkaloid production.
  一定范围内改变培养基pH值，对生物碱生成没有显著影响；
• Results showed that nitrite formation appeared mainly in the initial stage of fermentation, and nitrite disappeared gradually with the decrease of pH value.
  结果发现，亚硝酸盐的出现期主要集中在发酵前期，随发酵液酸度的增加亚硝酸盐逐渐消失。
• The several important affecting factors of photocatalytic degradation, including initial pH value of solution, catalyst quantity and initial concentration of solution, were also discussed.
  讨论了影响光催化降解效果的溶液初始酸度、催化剂投加量和甲基橙的初始浓度等几个重要因素。
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