Pure water is neutral with a pH of 7.

纯净水是中性的，PH值为7。

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。

The Ph. D. candidate is likely to change his field of specialization if he drops out.

如果这位博士候选人退出，这很可能会改变他的专业领域。

This ingredient is used to balance the PH in products, and can cause allergic reactions, and irritate your eyes, nose and skin.

这种成分被用来平衡产品中的酸碱值，能够引起过敏反应，并刺激你的眼睛、鼻子和皮肤。

Trypanocidal drug suramin is polysulfated and gives a positive alcian blue reaction even at pH 1.

锥虫类药物苏拉明经过多硫酸化处理，即使在 pH 值为1时也会产生阳性的阿尔辛蓝反应。

The pH of your blood is slightly alkaline.

我们的血液pH是偏碱性的。

Different tissues have different pH levels.

不同的组织液有不同的pH水平。

ph-Philip's photo is behind the telephone.

ph-菲利普的照片是在电话后面。

Ph... phone?

啊…手机？

One of the most important ones is the pH of your blood.

其中最重要的是我们的血液pH值。

FLATOW: Let me get a quick call from Melissa (ph) in Denver.

弗莱托：让我接一下丹佛的梅利莎打进的电话。

The bottom line: The body fights hard to keep your pH balanced.

概要：身体在拼命保持你的PH值平衡。

This raises your pH so it becomes more alkaline and less acidic.

这会提高你的PH值，变得更碱性和更少的酸性。

If possible, ocular pH should be measured but should not delay therapy.

若有可能，应对眼部的pH值进行测量，但该测量不应使治疗延缓。

The only way to directly measure the body's pH is by testing your blood.

唯一直接检测身体的PH值方法是测试你的血液。

The powder swallowed by Harrison was extremely alkaline – with a pH of 13.4.

Harrison所吞食的洗涤粉碱性极强—— pH值达13.4。

FLATOW: Let's see if we can get one more question from Ray(ph) in Sacramento.

我们来看看十分可以从萨克门托的Ray哪里获得一个问题。

But Cohen questions whether it's the right time to transition to a more costly way of providing Ph.

但是科恩质疑这是不是一个正确的时机去把培养博士科学家的方式变得更加昂贵，尽管他们更加有技能。

With Jim Westwater's strong support, I got my Ph. D. in three years, faster than almost anyone.

在詹姆士·韦斯特沃特的大力支持下，我用三年时间获得了哲学博士学位，几乎比任何人都快。

And just last year, while working as an assistant math professor, she decided to pursue her Ph. d.

并且就在去年，她是数学助理教授的时候，决定继续攻读博士学位。