ph中文什么意思

PH ＝public health 公共卫生。
【化学】表示氢离子浓度的倒数的对数的符号。

• automatic ph control ph:    值自动控制
• ph-meter ph:    计；氢离子浓度测定仪；酸度计
• ph-recorder ph:    记录仪

例句与用法

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1. A buffer system resists a change in ph .
   缓冲系统对pH的变化是有耐受能力的。
2. Condensation is very rapid at ph 7-9 .
   PH值7-9时缩聚极快。
3. The inflection point at this ph is barely detectable .
   在此PH值下，拐点不易发现。
4. The reaction should be buffered to a ph of between 6 and 11 .
   应使反应缓冲到pH值为611。
5. The first consideration in selecting a buffer is ph value .
   在选择缓冲剂时第一考虑是它的pH值。

百科释义

In chemistry, pH is a measure of the activity of the (solvated) hydrogen ion. p[H], which measures the hydrogen ion concentration, is closely related to, and is often written as, pH.