The modern city consists of monstrous edifices and of dark narrow streets full of petrol fumes , coal dust , and toxic gases 现代城市是由大得怕人的大厦和充斥着难闻的汽油味，煤灰和有毒气体和又阴暗又狭窄的街道所组成。
The invalid complained of being covered with ashes ; but he had a tiresome cough , and looked feverish and ill , so i did not rebuke his temper 病人抱怨着煤灰飘满他一身可是他咳嗽没完，看来像是在发烧生病，所以我也没有斥责他的脾气。
The recently completed great consultative projects arduded stlicate fly ash lightweight black , wet grindign fly ash cemetn without plaster and its products 近期主要完成的重大咨询项目有硅酸盐粉煤灰轻质砌块，湿磨粉煤灰无熟料水泥及其制品。
The purpose of blending coal in proportion to different kinds of coal fuel is to adjust the fusing characteristics of coal ash to ensure the safe operation of the boiler 按比例配煤是通过不同种类的煤，调整煤燃烬后煤灰所具有的熔融特性以达到锅炉安全运行。
To grab and handle sand coal , sediment , etc , this kind of equipment is fit for using in factories , mines , construction site , ware - houses 本机适用于工厂、矿山、建筑、仓库等。对砂石、煤灰、积沉物以及块状物的抓取运转作业，具有性能优越，工作可靠，高速高效等特点。
Regarding concerns over air quality , the spokesman said pulverised fuel ash ( pfa ) is widely used in concrete production throughout hong kong and in other parts of the world 至于混凝土所使用的煤灰，发言人表示，本港及其他世界各地均普遍使用煤灰以制造混凝土。
One group , led by dieter heymann of rice university , had proposed that the exotic carbon was part of the soot that accumulated in the wake of the massive , impact - ignited fires 由美国莱斯大学海曼领导的团队发表过报告，指出巨大撞击引发大火后，遗留的煤灰中有外来的碳。
Storing coal , coal gangue , coal cinder , coal ash , sandstone , lime soil or other materials in densely inhabited areas without taking any measures for fire and dust prevention （四）未采取防燃、防尘措施，在人口集中地区存放煤炭、煤矸石、煤渣、煤灰、砂石、灰土等物料的。
Article 23 when coal , gangue , coal cinder , coal ashes or lime is stored in densely inhabited areas , fire and dust prevention measures must be taken in order to prevent atmospheric pollution 第二十三条在人口集中地区存放煤炭、煤矸石、煤渣、煤灰、石灰，必须采取防燃、防尘措施，防止污染大气。
Effects of cement / aggregate ratio , fly ash / cement ratio and ages on the mechanics characteristic of fly ash , cement and sand mixture were investigated by orthogonal experiment 摘要以细磨粉煤灰、水泥和粉细沙为主要材料组成混合料，采用正交试验方法，研究胶沙比、灰胶比和龄期对混合料的抗压强度和杭拉强度等力学性能的影响。
