She taught me fractions and counting.

他教我分数和计算。

The students had a grasp of decimals, percentages and fractions.

学生们掌握了小数、百分数和分数。

He was so clever; he could reckon fractions in his head.

他是那么聪明；他能心算分数。

You do fractions, then you do decimals.

你先学习分数，然后，学习小数。

Mole fractions or ratio, but it's got units.

摩尔分数或比率，但它是有单位的。

yB So in the gas phase, we've got mole fractions yA and yB.

所以在气相中，我们有摩尔分数yA和。

All flour measurements are for level tablespoons or fractions.

量取面粉时以一平匙或一平匙的分数来计数。

A new module, fractions, implements the numeric ABC Rational.

新模块fractions可实现这个数值abc Rational。

So let's plug in what these mole fractions are from our table here.

让我们代入，这个表中的摩尔分数。

yB And yA and yB in the gas phase, the mole fractions in the gas phase.

在气体中是yA和，这是气体中的摩尔分数。

Math is difficult for her; fractions and percentages are completely new.

数学对他来说，相当困难。分数和百分数是第一次见面。

Namely, instead of showing the mole fractions as a function of the pressure.

也就是，摩尔分数不再是，压强的函数。

We elves never need that. And addition and subtraction and division and fractions?

什么加法，减法，除法，分数，我们从来不用它们。

Of course, at the limits they're still, both mole fractions they're zero and one.

当然，在极限处，两个摩尔分数分别是零和一。

This trick can save you microseconds or fractions of seconds with every page you open.

这个技巧可以节省你的每打开网页您微秒或分数秒。

YB Is going to be answer to part b, given these two molar fractions and the total pressure.

等于0。139,so, yB, is, equal, to, 0。139。，这是成分b的答案，我们可以从这两个摩尔分数和总气压算出来。

The amazing thing is that the mathematical fractions were the same numbers as the Fibonacci sequence!

令人惊讶的是这些分数的构成数字正是组成斐波那契数列的数字。

The students used a "slicer" to cut that block into fractions and a "cloner" to copy those slices.

学生们用切片机将这个块切割成几个部分和那些切片的克隆。

Islands are beloved by ecologists, because they’re simplified fractions of the whole complex world.

生态学家热爱岛屿，因为它们是整个复杂世界的简化部分。 猪笼草是个大小适中的岛屿，这是对它的一种看法。

The new Big Bang simulator is tiny - its width is only a few fractions of centimeters (20 micrometers).

这个新模拟的大爆炸是迷你型的，其宽度只有厘米的几千分之一(20微米)。

I'm afraid some of you students have forgotten what I taught you last week when we studied complex fractions.

我恐怕你们当中有的人已经忘了上星期我们在学繁分数的时候所教的内容了。

For it implies we could make an exhaustive list of all positive fractions, even though there's no smallest one!

因为它暗示了尽管没有最小的分数，我们也可以彻底地列出所有正分数的列表。

Even parents who may have forgotten lessons taught in a classroom long ago about fractions shouldn't be afraid.

即使是那些对很久以前在教室所教分数已经忘记的家长，对此书也不应该感到害怕。

Your "big Numbers" here are really just a drop in the bucket, fractions of fractions of a percent of our user base.

你所说的“大数字”只是用户基数的很小一部分。

It may not look like it because it's a bunch of mole fractions, and it certainly doesn't look like it has any units.

它看起来或许不像这样，因为它包含了很多摩尔分数，当然它看起来不像有单位的。

And then we're going to need the total number of moles, because we're going to be doing mole ratios, mole fractions.

然后我们需要知道，总摩尔数，所以我们要计算，摩尔比摩尔分数。

But both structures tend to break apart and recombine frequently, on the order of extremely tiny fractions of a second.

然而这两种结构在极小的时间片段顺序下，趋于频繁分开和再结合。

The downtime in these scenarios is measured as non-existent, fractions of a second, or, at the high end, a few seconds.

在这些场景中，停机时间以不存在、一秒或数秒来度量。

So if we're going to be writing our equilibrium constant in terms of mole fractions, we're going to need mole fractions.

所以如果我们把平衡常数写作，摩尔分数的函数，我们需要知道摩尔分数。