| 1. | This mixture of pozzolana and lime was then added to an aggregate .
人们把火山灰与石灰的混合物加到集料中。 |
| 2. | The ash, cinders, and other fragments become a consolidated rock .
火山灰、火山渣和其它碎屑变成了固结的岩石。 |
| 3. | The scientists attributed the losses to varied effects of the ash .
科学家们认为，损失是由于火山灰的多种影响造成的。 |
| 4. | Gas bubbles in the ash left holes that store large amounts of water for plant use .
火山灰内的气泡会留下空洞，它可以贮藏大量水份供植物利用。 |
| 5. | The year after its eruption in 1980, spruce seedlings were coming up in the volcanic ash on mt. st. helens .
1980年圣海伦火山爆发之后，仅过一年，云杉幼苗就在火山灰上生长起来了。 |
| 6. | The explosion cracks the earth's surface and scatters ash and huge chunks of rock for many kilometers around the vent .
这样的爆炸把地表炸开以后，其火山灰和巨大石块可散落到火山口周围好几公里远的地方。 |
| 7. | A pollutant such as volcanic ash may destroy plant life, kill or starve animals, and fill up lakes and rivers which fish depend on .
象火山灰这样的污染物，可以毁坏植物，杀害动物或使其饿死，填塞鱼类赖以生存的湖泊与河流。 |
| 8. | Pozzolanic materials used for cement production
用于水泥中的火山灰质混合材料 |
| 9. | Specification for pozzolanic pulverized - fuel ash cement
火山灰和粉状燃料灰分水泥规范 |
| 10. | Road foundations . testing of reactivity of pozzolana to lime
路基.火山灰的石灰反应试验 |
