Finally, Klebsiella pneumoniae grows well on MacConkey agar, which is a medium that contains a pH sensitive dye and lactose.

最后，肺炎克雷伯杆菌可以在含有pH指示剂的MacConkey琼脂培养基上良好地生长。

And we determine it in the lab using pH indicators through a process called titration.

我们在实验室中通称为滴定的程使用 pH 指示剂来确定它。

But what if she has an aneurysm, anyway? - There are no indicators.

— 但是如果她有血管瘤，怎么？—— 没有指示剂。

Earlier I used a pH indicator that showed an acidic pH by turning pink.

早些时，我使用了一种 pH 指示剂， 它通粉红色来显示酸性 pH 值。

But there are lots of other indicators, each with different colors and a different pH where it changes.

但是还有很多其他指示剂， 每一种都有不同的颜色和不同的 pH 值。

Here we have 100 mL of water from the river to which I've added some pH indicator.

有 100 毫升的河水， 我在其中添加了一些 pH 指示剂。

This results in the production of the acid that makes the pH sensitive dye turn pink - so their colonies will be pink.

乳糖发酵会产生酸性物质，使pH指示剂粉红，因此他们的菌落是粉红色的。

It's actually a mix of two different pH indicators: bromocresol green and methyl red.

它实际上是两种不同 pH 指示剂的混合物：溴甲酚绿和甲基红。

" The first should be an indicator card, " he went on, grabbing a white card with four squares marked on it and displaying it.

“第一样，是一张指示剂卡片。”他继续说着，拿起一张四角上都有标识的白色卡片，向我们展示。

We call that threshold the buffering capacity of the solution. And we determine it in the lab using pH indicators through a process called titration.

我们将该阈值称为解决方案的缓冲能力。我们在实验室中通称为滴定的程使用 pH 指示剂来确定它。

It'll stay blueish in color for as long as the bicarbonate ions are around to keep the pH buffered above the indicators end point of pH 4.

只要碳酸氢根离子在周围以保持 pH 值缓冲在 pH 值 4 的指示剂终点之上，它就会保持蓝色。

And this is just distilled water with a pH indicator in it that makes it blue when it's neutral or basic and it'll turn pink if it's at least a little bit acidic.

只是蒸馏水， 面有 pH 指示剂， 当它呈中性或碱性时， 它会蓝色，如果它至少有点酸性， 它会粉红色。

It'll stay blueish in color for as long as the bicarbonate ions are around to keep the pH buffered above the indicators end point of pH 4. This long glass thing here is a burette.

只要碳酸氢根离子在周围以保持 pH 值缓冲在 pH 值 4 的指示剂终点之上，它就会保持蓝色。的个长玻璃东西是滴定管。