That concentration would push the pH down to 4.

不过这里有一些不同。

They also regulate blood pH, volume, pressure, osmolality as well as produce hormones.

们也调控血液pH值、血容量、血压、渗透压，并产生多种激素。

These rapid tests are very pH sensitive.

这些快速测试对 pH 值非常敏感。

But citric acid lowers the pH in that tissue, which makes the enzyme unable to function.

但是柠檬酸会降低该组织的酸碱度，从而酶无法发挥作用。

A pH level below seven is considered acidic.

PH值低于7被认为是酸性。

The pH, the turbidity, the color, suspended solids, and COD.

pH 值、浑浊度、颜色、悬浮物 COD（化需氧量）。

It gives honey a pH value of less than 4.

蜂蜜的 pH 值小于4。

The package label should include information about its pH level.

包装标签应包含有关其pH值的信息。

The water there is extremely basic — with a pH of 11.6.

这里的水很普通，酸碱值为11.6。

But the pH of the Miller-Urey experiment is much higher.

但米勒实验的 PH 值高多。

In the original experiments they used a pH of 8.7 which is more alkaline, or basic.

在最初实验里，他们用的PH 值为8.7，其碱性更强。

For example, tumors have low oxygen and pH levels and over-produce specific molecules.

举个例子，肿瘤通常含氧量低，PH 值低，并且会过量生产特定分子。

Litmus is a pH indicator, a chemical that turns different colors at different pHs.

只有极少量的水分子分解成了离子。

I volunteered at Parkville (ph) elementary school.

我在帕克维尔小当过志愿者。

That's why we use the buffer to lock our sample into a pH of 7.4.

这就是我们用缓冲液将样品的 ph 值锁定在7.4 的原因。

Buy a pH test online or at your local garden center and follow the directions.

在网上或当地的园艺中心买一个pH测试器，并按照说明操作。

Hey, Peeker (ph), show me the weather.

嘿，Peeker，给我看看天气情况。

But they (ph) need resources to open.

但是企业家们需要重启的资源。

It has to go in because the pH is too low for the reaction to work.

必须放进去，因为 pH 值太低，反应就无法进行。

In addition, acidic foods and drinks can also cause the pH in the mouth to lower.

此外，酸性食物饮料也可以导致口中PH值降低。