The principle, method and demand for fire prevention technology by using injecting coal ash are expounded in this paper.

详细论述了粉煤灰注浆防灭火技术的原理、方法和技术要求。

youdao

The principle, method and demand for fire prevention technology by using injecting coal ash are expounded in this paper.

详细论述了粉煤灰注浆防灭火技术的原理、方法和技术要求。

youdao