Per cent , parts per thousand ; concepts , use

百分率.千分率.概念.应用

We always use per thousand sign to express a thousandth.

我们总是用千分号表示千分数.

He wrote the per cent sign instead of the per thousand sign mistakenly during the exam.

他考试时误将千分号写了成百分号.

The rate of imperfect item is about twenty - five per thousand.

次品率约为25%.

Infant mortality was 20 deaths per thousand live births in 1986.

1986年的婴儿死亡率为生育成活率的千分之二十.

In the sea water sampled the salinity is two parts per thousand.

在取样的海水中,盐度为千分之二.

Ad rates online are priced by CPMs cost per thousand impressions.

在线广告费率是按照CPM来定价的.

Oceanic salinity generally has a range from 34 to 37 parts per thousand.

海洋中海水的盐度通常为34‰-37‰.

Uncertain consumers need the reassurance of known brands--and more consumers at home watching television can deliver higher than expected audiences at lower cost-per-thousand impressions.

不安的消费者需要知名品牌的鼓励——而消费者都呆在家里看电视可以让你以更低的千人成本来投放广告。

The salinity of the earth's oceans is about thirty-five parts per thousand, meaning that there are about thirty-five grammes of dissolved solids and gases in one kilogramme of water.

地球海洋里的盐度大约为35% ，意思是说，在每公斤的水中约含有35克溶解的固体和气体。