1·This paper introduces present situation and ways of utilization of powdered coal ash in our country.
介绍了我国粉煤灰利用的现状及目前粉煤灰利用的方法。
2·Powdered coal ash seriously pollutes the environment, Occupies a great quantity of soils, therefore it is imperative to comprehensive utilization.
粉煤灰严重污染环境，占用大量土地，综合利用势在必行。
3·Combining the basic circumstance of the pavement basic level, study the cement, the powdered coal ash stable grain to tally up the characteristics of it.
结合路面基层的基本情况，对水泥、粉煤灰稳定粒料进行研究，总结出水泥、粉煤灰稳定碎石具有的特性。
4·For the sake of treating textile-dyeing wastes, experiments on the activation of silica and powdered coal ash with HCI and its efficiency of treatment are carried out.
为了处理印染废水，进行了用HCI活化硅藻土、粉煤灰及其处理效能的试验。
5·Phosphorus-gypsum is a by-product of phosphoric acid and some Compound Washing product industry . Powdered coal ash is a kind of powder which collected from waste gases of coal ash boiler .
磷石膏是磷酸工业和某些合成洗涤产品工业的副产品，粉煤灰是在煤灰锅炉废气中收集下来的粉末。
6·After a series of tests, a kind of C30concrete containing40%blending powdered coal ash has been prepared. It has been used in practical projects and achieved good economical and social benefits.
通过一系列的试验，研制出掺量达40%的C30粉煤灰混凝土，并成功地应用于实际生产，取得了较好的经济效益和社会效益。