quantity的意思是什么

1. how much there is or how many there are of something that you can quantify
2. an adequate or large amount;

   "he had a quantity of ammunition"
   

3. the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable

1.数量;量
Aquantity is an amount that you can measure or count.

e.g. ...a smallquantity of water.
少量的水
e.g. ...vast quantities of food...
大量食品

2.大量;大宗；大批
Things that are produced or available inquantity are produced or available in large amounts.

e.g. After some initial problems, acetone was successfully produced inquantity...
解决了最初的一些问题之后，终于成功地制造出了大量丙酮。
e.g. But even with those databases, the sheerquantity of data can still cause problems.
可是即便有了那些数据库，数据的数量之大仍然会带来问题。

3.(尤指和质量相对的)数量
You can usequantity to refer to the amount of something that there is, especially when you want to contrast it with its quality.

e.g. ...the less discerning drinker who prefersquantity to quality...
不求质、但求量的不那么识货的饮酒者
e.g. In terms ofquantity, production grew faster than ever before.
从数量上看，产量增长的速度比以往任何时期都要快。

4.未知量;未知数
If you say that someone or something is anunknown quantity, you mean that not much is known about what they are like or how they will behave.

e.g. He is an unknownquantity for his rivals.
对于对手们而言，他是个未知数。

• double the quantity使数量翻一番
• produce huge quantity大量生产

• certain quantity若干数量
• great quantity大量
• large quantity相当大的数量
• small quantity小量
• unknown quantity未知量,难以预测的人或事

• in quantity数量上
• in great quantity大量

• a quantity of一定量的,一些,许多
• quantity of electricity电量
• quantity of heat热量

• A certain quantity or measure of renown.

  出自：S. Johnson

• At lunchtime he takes large quantities of illicit gin.

  出自：A. Djoleto

• A pound of anchovies, and the same quantity of bay-salt.

  出自：R. Brautigan

• The quantity of data processing involved made it impossible to run the system.

  出自：Studio News

quantity, aggregate, amount, number, sum, total, whole

这组词的共同意思是“总数、总合”。其区别是：

aggregate指把数目的各个部分加在一起；amount指累积的结果；number指数字或东西相加所得的总数；sum指最后的总结果，表示截至现在的总数, 还有增加的可能；total和whole都指合计的结果的全体，total常指大的数量，whole也含有各部分总和的意味。quantity主要表示物质的量。

adj.

［' ɡrIɡ?t］

quantity，amount，number，sum

这些名词均有“总数、总量”之意。

quantity书面用词，指事物的总量和总数量，侧重大批计量，含准确测量的意味。

amount普通用词，与quantity近义，但强调整体，指把所有数量、重量及度量归并在一起得出的总数。

number普通用词，指人或物的数目，强调数的概念。

sum普通用词，指简单加算的结果。