quantity 高考四级六级考研

1.He ate a small quantity of rice.

他吃了少米饭。

2.Our new director is still an unknown quantity.

我们对新来主管知之甚少。

3.This medicine is poisonous if taken in large quantities.

这种药若服用过是有害。

4.In algebra, the sign X usually denotes an unknown quantity.

在代数里, 符号X常用来表示未知数。

5.Forensic examination revealed a large quantity of poison in the dead man’s stomach.

法医检验发现死者胃里有毒药。

6.You must eliminate an unknown quantity.

你必须消去一个未知数。

7.Quantities of food were on the table.

桌上摆了食物。

8.A large quantity of beer was sold.

售出了啤酒。

9.Mathematics is the science of pure quantity.

数学是纯粹研究数科学。

10.It's wrong to sacrifice quality to quantity.

牺牲质去追求数是错误。

11.Quantities of food were spread out on the table.

许多食品被摊放在桌子上。

12.She was burdened with a large quantity of parcels.

她吃力地捧着一堆包裹。

13.Large quantities of water are needed for cooling purpose.

冷却要用水。

14.Three is a plus quantity.

三是一个正数。

15.Dimethoxymethane possesses higher quantity of oxygen, higher ratio of hydrogen to carbon and lower flash point.

甲缩醛含氧、氢碳比高、闪点低，加入柴油中能够提高其十六烷值。

16.His work is good in respects of quality but bad in respect of quantity.

他工作质很好, 但数很少。

17.What i the actual quantity tated?

实际数说明什么？

18.A new chelatometry has been applied to measure molybdenum quantities of molybdenum disulfide lubricant,replacing the traditional weight method.

提出了新螯合滴定法测定二硫化钼,用以取代传统重法。

19.The article focuses on quantity analysis, discussion of using constant quantity instrument to do semimicro chemical analysis experiment.

本文围绕定分析实验中,利用常仪器进行半微化学分析进行探讨。

20.Quantities are easily misjudged.

数容易被估错。