initial ph value

常见例句

雙語例句

• Increasingthe initial PH value in the range of 4-7 had no obvious effect to alkaloid production.
  一定範圍內改變培養基pH值，對生物堿生成沒有顯著影響；
• Results showed that nitrite formation appeared mainly in the initial stage of fermentation, and nitrite disappeared gradually with the decrease of pH value.
  結果發現，亞硝酸鹽的出現期主要集中在發酵前期，隨發酵液酸度的增加亞硝酸鹽逐漸消失。
• The several important affecting factors of photocatalytic degradation, including initial pH value of solution, catalyst quantity and initial concentration of solution, were also discussed.
  討論了影響光催化降解傚果的溶液初始酸度、催化劑投加量和甲基橙的初始濃度等幾個重要因素。
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