- ph indicatorPH值指示剂，氢离子（浓度的）负指数指示剂;
- 双语例句
1、
Pure water is neutral with a pH of 7.
纯水是中性的，酸碱度为7。
柯林斯例句
2、
Two Ph . D . theses attest to the results of his work.
有两篇哲学 博士 论文论证了他的研究结果.
辞典例句
3、
pH is a measure of the concentration of free hydrogen atoms in a solution.
pH值是测试溶液中自由氢原子浓度的单位。
柯林斯例句
4、
A pH test measures the acidity or alkalinity of a substance.
pH值测试可检测物质的酸碱度。
——柯林斯例句
5、
Skin is naturally slightly acidic and has a pH of 5.5.
皮肤具有天然弱酸性，pH值为5.5。
——柯林斯例句
6、
The fluid that emerges from the vents is acidic (pH 3) and hot.
从那些出口出来的液体呈酸性（pH值为3），且是热的。
——柯林斯例句
7、
Hemagglutination of some viruses has a particular PH requirement.
某些病毒的血凝反应需要一定的PH值.
辞典例句
8、
He always drags his Ph . D . into every discussion.
他讨论发言的时候总是要生拉硬扯到他的哲学 博士 头衔.
辞典例句
9、
The inflection point at this PH is barely detectable.
在此PH值下,拐点不易发现.
辞典例句
10、
You don't need a Ph.D to decode their work, but they do try to challenge audiences with unconventional material.
解读他们的作品并不需要有博士学位，但他们的确在尝试用一些非传统素材来挑战观众的接受度。
柯林斯例句
11、
A solution which resists pH changes is known as a buffer solution.
能够阻止pH值变化的溶液称为缓冲溶液.
辞典例句
12、
A buffer system resists a change in pH.
缓冲系统对pH的变化是有耐受能力的.
辞典例句
13、
That man is a total phony, he palms himself off as a Ph . d.
那家伙是个彻彻底底的冒牌货, 他冒称是个博士.
《简明英汉词典》
14、
Such polyaggregates are stable only over very narrow temperature and pH regions.
这些多聚集体只有在非常窄的温度和pH范围内方是稳定的.
辞典例句
15、
a pH of 7.5
pH值7.5
《牛津高阶英汉双解词典》
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