fractions

美 [?fræk?(?)n] 　英 ['fræk?(?)n]

• n.碎片；【數(shù)】分數(shù)；【化】分餾；一些
• 網(wǎng)絡有理數(shù)；分餾物；分數(shù)的概念

詞形變化

反義詞

同義詞

英漢解釋

英英解釋

例句

Let's consider a student trying to understand fractions.

再讓我們來想一想一個學生如何學習分數(shù)。

But when it asked him to multiply a series of fractions with just over a minute left to play, he had no patience to work out the problem.

但是在離結束游戲還有一分多鐘的時候要求他計算一組分數(shù)的乘法時，他就沒有耐心在這個問題上計算了。

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

你所說的“大數(shù)字”只是用戶基數(shù)的很小一部分。

One defines standard parts of the face and measures the distance, and the changes in distance over fractions of a second, between them.

一類是定義臉部的標準部位和測量部位之間的距離，以及在幾分之一秒內(nèi)距離的變化。

For others, it might be a cartoon produced by the world's best animators illustrating how fractions represent parts of a whole.

對于有些學生，可能是看一個世界上最好的卡通工作室做出來的教學分數(shù)的卡通影片。

Some of these particles are stable and form the normal matter, the others live for fractions of a second and then decay to the stable ones.

這些粒子中的一部分是穩(wěn)定的并且構成了普通物質(zhì)，其它的只存在一秒鐘的幾分之一，然后衰變為穩(wěn)定粒子。

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

然后我們需要知道，總摩爾數(shù)，所以我們要計算，摩爾比摩爾分數(shù)。

Computers did not like fractions, nor did the old method encourage trading at the speed of light.

電腦不喜歡分數(shù)制，而且舊的報價方法有礙交易以光速進行。

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。，這是成分B的答案，我們可以從這兩個摩爾分數(shù)和總氣壓算出來。

The results showed that the temperature and time of the heat treatment had different effect on the protein fractions.

結果表明，熱處理溫度和時間對樣品中的蛋白質(zhì)組分均有不同程度的影響。

It will be much easier to understand if the fractions are rounded up to the whole numbers.

如果把分數(shù)調(diào)高為整數(shù)，那么就更加容易理解了。

After World War II, the energy derived from burning the various fractions of petroleum exceeded that of coal.

二戰(zhàn)后，燃料各種石油餾分所產(chǎn)生的能量超過了燃燒煤所產(chǎn)生的能量。

The solvent used for the extraction was tetrahydrofuran and sol-fractions of the samples were calculated.

并對該彈性體及其抽提后的試樣進行了掃描電鏡表征。

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

在這些場景中，停機時間以不存在、一秒或數(shù)秒來度量。

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

然而這兩種結構在極小的時間片段順序下，趨于頻繁分開和再結合。

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

這個新模擬的大爆炸是迷你型的，其寬度只有厘米的幾千分之一（20微米）。

In the brain, only the mitochondrial fraction showed the ability to reduce Cu-PTSM, and the other subcellular fractions did not.

在大腦中，只有小部分表明線粒體的能力，以減少銅PTSM，其他亞細胞組分沒有。

The GDI mapping modes allow you to draw in units of inches (or rather, fractions of inches), millimeters, or anything you want.

GDI映射模式允許你用英寸（或者甚至是英寸的小數(shù)），毫米或者任何你想的單位繪圖。

Sectors of it represent corresponding fractions of a wavelength.

它的各個弧段則代表一個波長的相應分數(shù)。

any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis.

能通過蛋白質(zhì)水解過程將蛋白質(zhì)催化分解為更小的縮氨酸和氨基酸的酶。

The work of the chemical engineer in utilizing successively greater fractions of raw materials such as crude oil is well known.

化學工程師的工作是對象原油這樣的一些原材料的多數(shù)分餾物加以連續(xù)不斷地利用，這是盡人皆知的。

It is separated into a few fractions which boil over different ranges of temperature.

它按沸點的幾個溫度范圍分成少數(shù)幾種餾分。

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

數(shù)學對他來說，相當困難。分數(shù)和百分數(shù)是第一次見面。

These groups also fire over fractions of a second, much closer to the timescale of conscious awareness than single-neuron firings .

這些神經(jīng)細胞群活化的時間也超過幾分之一秒鐘，遠比單一神經(jīng)元的活化時間，要更靠近意識能夠察覺的時間尺度。

Fractions of normal and cancer stem cells are naturally more resistant to toxic injuries than any other cell type.

部分成體干細胞和腫瘤干細胞先天就比其他類型細胞更加耐受毒性損傷。

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

所以如果我們把平衡常數(shù)寫作，摩爾分數(shù)的函數(shù)，我們需要知道摩爾分數(shù)。

Are there any other (minor) components in any of the fractions ?

在任何一個餾份中還有沒有其他（較少）組分呢？

The invention also concerns a device for separating fractions of a mixture to be separated.

本發(fā)明還涉及一種將待分離混合物進行分離的裝置。

The smoke extract is with the present method produced by means of supercritical extraction of fractions of the wood tar.

使用本方法通過超臨界提取木焦油的級分生產(chǎn)煙提取物。

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

我恐怕你們當中有的人已經(jīng)忘了上星期我們在學繁分數(shù)的時候所教的內(nèi)容了。

A rational range is the set of all fractions from a minimum fractional value through a maximum fractional value .

有理范圍是指從最小分數(shù)值到最大分數(shù)值的所有分數(shù)的集。

The kids also learn fractions as they follow who gets knocked out of the tournament.

學生們也可以從那些被淘汰的球隊那學會用分數(shù)進行計算得分。

You know, so, at best, we're like these tiny fractions of people, you know, walking.

所以，我們充其量就只是這些來自於從前的人們的微小碎片。

As a result, drivers are able to shave fractions of a second off their lap times.

因此，賽車手可以將他們的繞圈時間減少千分之一秒。

She shifted. 'Why, yes. Isn't it the usual thing for a child to be struck for in fractions? '

她挪動一下。‘哎，是的。那不是用來打不守規(guī)矩的小孩很常用的東西嗎？

Simply, interactive websites and textbooks can teach fractions and the stages of cell reproduction every bit as well as a lecturer.

簡而言之，互動式的網(wǎng)絡和課本可以完全像老師那樣講解細胞繁殖階段的課程。

The second and third fractions were mesopore and micropore diffusion respectively, and the intraparticle diffusion was the control step.

第二和第三階段分別是中孔和微孔擴散過程，顆粒內(nèi)擴散為速率控制步驟。

Gliding more efficiently, with less drag, can cut vital fractions of a second from a swimmer's time.

更有效的滑行、減少阻力，可以降低對運動員至關重要的須臾的比賽用時。

This example is greatly simplified, and the specific units are unimportant (in reality the units would be tiny fractions of seconds).

此例徹底簡化了的，并且具體的單位也不重要（實際上，此單位是一秒的極小一部分）。

Click on the different icons to choose another exercise. The exercises help you to practice different aspects of calculating with fractions.

點擊不同的圖標來選擇另一個練習。這些練習幫助您練習不同方面的分數(shù)計算。

avoid needless and flowery words. think of elementary school when you had to reduce fractions to the "lowest common denominator. "

不要用那些垃圾詞語和華麗的詞藻。您應該還記得在小學簡化分數(shù)時用到的“最小公分母”定律吧。