煤灰

Fly ash has been widely utilized in concrete in recent years as a kind of active mineral admixture.

粉 煤灰作为一种活性掺和料，在混凝土的制备中得到了广泛应用。

Compared with coal ash, medical glass had higher contents of SiO2 and alkali metal oxides.

与煤灰成分相比，医用玻璃中的SiO2和碱金属氧化物含量较高。

Higher anhydrite and hematite content and lower portlandite content would result in lower ash fusion temperature.

一般情况下，煤灰中氢氧钙石含量低，硬石膏和赤铁矿含量高的煤，灰熔融温度较低。

The content of anhydrite and calcite is lower. The content of anhydrite will increase with the addition of flux CA while the content of calcite will decrease.

煤中添加助熔剂CA后，煤灰中硬石膏含量增加，并且随着助熔剂CA量的不断增加，方解石含量在不断减少，硬石膏含量在不断增加。

As the heating temperature increases, the content of quartz, anhydrite and portlandite in coal ash decreases in reducing conditions and some new mineral phases are formed.

在还原性气氛下，随着温度的升高，煤灰中的石英、硬石膏、氢氧钙石等结晶矿物含量逐渐减少，生成新的矿物质。

Anorthite at high temperature lowers the ash fusion temperature.Key words:coal ash; mineral features;infrared spectrum;X-ray diffraction XRD

利用X-射线衍射和红外光谱从矿物学角度揭示煤灰熔融特性的差异，为高灰熔点煤在气化炉中有效利用提供基础数据。

To cover with black or soot begrime .

使积满污垢被黑色污垢或煤灰覆盖，弄脏，沾

By the turn of the century the soft French stone used in Blore's East Front was showing signs of deterioration, largely due to London's notorious soot, and required replacing.

由世纪之交软法国用石材出场的东方战线呈现恶化迹象，主要是由于伦敦的黑煤灰，并要求更换。

Borax fluxing agent was added to four kinds of coal ash in terms of different quality ratios.

将硼砂按不同比例分别掺入四种高灰熔点煤灰中，对混合灰样熔融特性进行实验研究。

The apparent densities and uranium extractions of ash products are determined.

测定了煤灰的松装密度和煤灰中铀浸出率。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。