英语释义

• a small part or item forming a piece of a whole

• a component of a mixture that has been separated by a fractional process

• the quotient of two rational numbers

• perform a division;

  "Can you divide 49 by seven?"

片语

mass fraction质量分数

a fraction of一小部分；一部分；零点几

size fraction[冶] 粒级；颗粒组；[冶] 粒度级份额

decimal fraction小数；[数] 十进制小数

mole fraction[化学] 摩尔分数；[化学] 克分子分数

fraction defective不合格率；废品率；不良率

Packing fraction聚集率

colloid fraction胶体率

to a fraction完全地

void fraction空隙率；[力] 空隙分数；空隙组分

Improper fraction[数] 假分数；可约分数

ejection fraction[生理] 射血分数；射出分率

Fraction Stittles分数小人

molar fraction[化学] 克分子分数；摩尔分数

weight fraction重量百分率；重量分率；重量分数

Egyptian fractionAn Egyptian fraction is the sum of distinct unit fractions, such as \tfrac{1}{2}+\tfrac{1}{3}+\tfrac{1}{16}. That is, each fraction in the expression has a numerator equal to 1 and a denominator that is a positive integer, and all the denominators differ from each other.

Active fraction有效部位

volume fraction体积分率，[数] 体积分数；容积率

unit fraction[数] 单分数

continued fraction连分数，连分式

英汉例句

• career and technical education could be expanded at a fraction of the cost of college subsidies.

  可以扩大职业与技术教育，而其花费仅相当于大学补贴的一部分。

• we owe a lot tothe birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spiders.

  我们要十分感谢那些吃昆虫的鸟和兽，然而把它们所杀死的昆虫全部加在一起也只相当于蜘蛛所消灭的一小部分。

• water covers three quarters of the earth, but only a small fraction is accessible as freshwater.

  水覆盖地球的四分之三，但是仅有很少一部分是可以获得的淡水。

• because most deposits lie fallow on any one day, banks are safe in holding only a fraction of them in reserve.

  由于在任意一天中，绝大多数存款都不会被提取，因此银行仅持有部分存款作为储备金是安全的。

• but today such applications account for only a small fraction of internet traffic.

  但是今天这样的应用只不过占因特网流量的很小一部分。

• the first variant is much faster, because only a fraction of the nodes have to be inspected during evaluation.

  第一个表达式速度非常快，因为在计算期间只需要检查节点的一部分。

• because cloud environments are virtualized, a fraction of the total cpu, memory, and disk storage is allocated to each user request.

  因为云计算是虚拟化的，所以全部cpu、内存和磁盘存储的一部分被分配给每个用户请求。

• and for each component we have to describe its mole fraction in that particular phase.

  对每一个组分我们都要知道,它在各个相中的摩尔分数。

• but meditation is a much broader term than many people realize, and the reverential monk image respresents only a minute fraction of what the world of meditation actually consists of.

  但是，打坐是一个广义词，比许多人理解的要广泛得多，虔诚的僧侣形象代表的仅是打坐世界实际包含的一个微小部分。

• suddenly, as if overnight, a significant fraction of the world’s computers were connected, not only by a physical network but also by a common protocol for exchanging information.

  突然，似乎是一夜间，世界上相当大的一部分计算机被连接在一起，不仅仅通过物理网络，而且还通过一个用于交换信息的公共协议。

• it may take a while to do this if you have large documents, but it will definitely take only a small fraction of the time compared to re-typing every translation.

  如果你有较大的文件，这可能需要一段时间才能完成，但和将翻译作品重新打一遍的时间相比，它肯定是只需用其中一小部分时间。

• but even in the most favourable circumstances only a small fraction of the creatures that die are preserved in this way before decay sets in or, even more likely, before scavengers eat them.

  即使是在最有利的环境中，死去的生物中也只有一小部分能在开始腐烂前，或更可能在被食腐动物吃掉之前，被这样保存下来。

• and you「ll have some different mole fraction than you started with before.

  你会和之前开始的时候,有不同的摩尔分数。

• so voluminous is this collection, which ranges from paintings and scrolls to ancient porcelain and statues, that only a fraction of it is ever on display at once.

  这是如此浩繁，收集，其范围从绘画和滚动古代瓷器和塑像，只有它的一小部分是显示一次有史以来。

• but when we started quantifying their absorption, we realized that more light could be absorbed than predicted by the wire-packing fraction alone.

  但是当我们开始确定它们的吸收率时，我们意识到仅硅线包装部分就能吸收比预测量更多的光。

• so far, very few foreign aid workers have been allowed in, and supply shipments have been a small fraction of what disaster experts say they should be.

  到目前为止，只有很少的外国救援工作人员被準许进入缅甸。灾难专家表示，运到缅甸的救援物资也只是所需要的很小一部分。

• you may also want to only do detailed logging on a random fraction of requests and extrapolate from there.

  您还可能会想只对请求的一个随机部分执行详细的日志记录，然后从中进行普遍性推断。

• america’s public debt is expected to double as a fraction of gdp by 2018.

  作为国内生产总值的一部分，预计美国的国债在2018年会翻倍。

• humans - thank goodness - only ever get to see a tiny fraction of it.

  人类-感谢上帝-只看到它的一个极小的部分。

• today we know that subprime lending was only a small fraction of the problem.

  今天我们知道次级抵押贷款只是问题中的一小部分。

• people often invest in exercise machines and then don」t use them, which means you can find a like-new item for a fraction of the price.

  有些人通常投资于健身器材，然后并不使用，这意味着你可以仅花一小部分钱就可以买到近乎全新的设备。

• 「many people claim that only a minute fraction of bub-ble universes would have the right conditions to harbor life, 」 adams says.

  许多人都声称在那些假设的宇宙中，只有非常微小的一部分恰好具备培育生命的条件。

• in this way, the application can scale from the fraction of a single physical host to three physical hosts.

  这样，应用程序可以从占用一个物理主机的一部分扩展到占用三个物理主机。

• more than half of the precipitation that falls on land is never available for capture or storage because it evaporates from the ground or transpires from plants; this fraction is called green water.

  降落到地球上超过一半的降水都从不会被利用或者存储，因为雨水会在地面上被蒸发掉或者被植物散发掉；这一部分被称作绿色降水。

• for now, body energy supplies only a small fraction of the gym’s needs, but the amount should increase as more machines are adapted.

  现在，身体产生的能量只是俱乐部中很少的一部分，一旦更多的这样的机器被使用，这个部分就会增加。

• unlike helium-3 we know the moon has large amounts of hydrogen, as ice, and a significant fraction of it will be deuterium.

  不同于氦-3，我们知道，月球有大量的氢，以冰的形式存在，以及它的一个重要部分将是氘。