Secretary Sebelius faced hours of questions during that Congressional hearing yesterday.

部长西贝利厄斯在昨天的国会听证会上面对数小时的质疑。

This is why water can act as both an acid and a base.

对数运算的底数，或是说log下面的那个数字，把它作为指数运算的底数。

The new formula relies on the mathematical concept known as logarithms.

新公式依赖于为对数的数概念。

Log base 2 of 8000 is roughly 13.

8000 的以 2 为底的对数大约是 13。

Decibels are in what we call a logarithmic scale, for the mathematicians out there.

对于那里的数家来说，分贝是我们所说的对数刻度。

And not just any logarithms, but those known as " natural" ones.

仅是任何对数， 还有那些被为“自然” 的对数。

First, researchers encode trillions of mRNA molecules with the instructions for a specific viral protein.

首先，员使用特定病毒蛋白的指令对数万亿个 mRNA 分子进行编码。

The horizontal line is time before present, and the vertical line as the logarithm of sizes of settlements.

横线是现在之前的时间，纵线是聚落规模的对数。

They're what we use most in chemistry, and they're really easy to understand, and also what we base scientific notation on.

是的，没错，对数一眼看过去是有点吓，但我们要用的这个对数却超级简单。

Strong bases meanwhile, like sodium hydroxide, consume large amounts of hydrogen ions leaving the concentration very low, so they 10d to have very high pHs.

那么pH，简单地表示为负的该浓度以10为底的对数，也就是7我的这个小伙伴，成为了pH标度的基础。

The neural network is trained on hundreds of millions of images paired with captions and can translate virtually any text prompt into a relevant image, even seemingly random prompts.

神经网络对数亿张配上字幕的图像进行了训练，可以将几乎任何文本提示翻译成相关的图像，甚至是看似随机的提示。

If Meg had wanted a reward for hours of patient labor, she received it in the hearty pressure of her father's hand and the approving smile he gave her.

如果梅格想要对数小时的耐心劳动给予奖励，她会在父亲用手用力的按压和他给她的赞许微笑中得到奖励。

And they can’t say it’s to save money, because at the very same time, they voted for trillions of dollars in new tax cuts, weighted towards those at the very top.

他们会说这是为了节约资金，因为此时此刻，他们对数以万亿的税收优惠政策进行了投票，要为社会最顶层的服务。

To find the loudness of a sound when you know its intensity, you take the base-10 logarithm of its intensity, over the reference intensity of 1 picowatt per square meter.

要在知道声音强度的情况下求出声音的响度，可以在每平方米 1 皮瓦的参考强度上取其强度的以 10 为底的对数。

Fortunately, Dijkstra's algorithm was improved a few years later to take the number of nodes in the graph, times the log of the number of nodes, PLUS the number of lines.

幸运的是，Dijkstra 的算法在几年后得到改进，将图中的节点数乘以节点数的对数，再加上线数。