demand of  vt. 索取(向要求)
They went on strike Monday in demand of a 30 percent wage increase.
他们于星期一举行罢工,要求增加百分之三十工资。
一般都用在in/at demand of sth.

demand for  对...的要求
As populations increase, the demand for water grows accordingly.
随着人口的增长，用水量也相应增加。
有点对......的要求/需求的感觉

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demand for: 对…的需求

Vaccines are likely to be in demand for some time. 疫苗可能将在一段时间内拥有需求。

Demand for industrial salt is steady and predictable. 工业盐需求是稳定且可预测的。

In many industries demand for workers continues to rise.许多行业对工人的需求仍在持续上升。

Where, he asks, would the excess demand for global assets go?

他问道，对全球资产的过度需求又能去向何方？

That has boosted demand for coal, since most of the new plants are coal-fired.

既然绝大多数新电厂都是烧煤的，这就增加了对煤的需求。

And there is strong demand for more as a major change takes place in computing.

而且因为发生在处理上的主要变化，强烈需求更多的机器。

But precedent suggests that this will serve merely to increase the demand for light.

但是历史告诉我们这个应用将只会增加对光的需求。

Indeed, there is considerable demand for that most ancient of financial products, gold.

事实上，对于最为古老的金融产品——黄金的需求大增。

Increases in starting pay are also a sign of the demand for business and technical majors.

任职首次薪金的提高也标志者对商业及工程专业学生需求的增加。

Industry will also be affected. Rising temperatures will mean greater demand for cooling water.

工业也会受到影响。气温升高，意味着需要更多的冷却水。

America's Department of Agriculture believes global demand for wheat will continue to exceed supply this year. 美国农业部认为今年全球对小麦的需求将保持超过供给的势头。

The UAE hopes to become the first Gulf state to develop a civilian nuclear programme to help meet soaring demand for power.

阿联酋希望成为第一个发展民用核能的海湾国家，以帮助满足日益高涨的能源需求。

Growers follow a very precise schedule in order to ensure that their roses bloom in time to meet the demand for Valentines Day.

栽培者们制定非常精确的栽培计划时间表，目的是确保他们的玫瑰能在有需求的情人节那天开花。

The distribution of entertainment products is limited to state enterprises, which America says increases the demand for pirated goods.

美国称，国有企业垄断本国娱乐产品的生产，增加了中国民众对盗版产品的需求。

President Bush says the price spike （敬爱个飙升）is the result of basic economic forces: global demand for oil that is growing faster than the supply.

布什总统说油价的飞涨是基于基本的经济学原因：全球石油需求大于供给，并且这个趋势仍然不变。

Undoubtedly the growth of demand for business education, especially in India and China, will compel other European business schools to reassess their product.

毋庸置疑，商业教育需求的增长，特别是在印度和中国，将迫使其它欧洲商学院重新评估自己的产品。