The significance, technical ways, experimental result and analysis of developing new green cementing material with activated low grade fly ash is introduced herein.

介绍了对低等级粉煤灰进行活化处理开发绿色新型胶凝材料的意义、技术路线、试验结果及分析。

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The machine uses a good pre-packed bags, packaging bags pattern perfection, sealing quality, package material loss is low, high-grade products.

本机使用的是预制好的包装袋，包装袋图案完美、封口质量好、包材损耗低、产品档次高。

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Cold plasma purification and hydrometallurgy, having their own merits, were two of the most important methods to prepare low cost solar grade Silicon material.

冷等离子体提纯与湿法冶金是制造太阳级硅材料的两种重要方法。

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However, an IAEA official who asked not to be named cautioned against drawing such dramatic conclusions from the data, saying Iran's stock of low-enriched uranium would have to be turned into highly enriched uranium to be weapons-grade material.

CNN: Rice: U.S. will seek to end any 'illicit' nuclear ambitions by Iran

However, an IAEA official who asked not to be named cautioned against drawing such dramatic conclusions from the data, saying Iran's stock of low-enriched uranium would have to be turned into highly enriched uranium to qualify as weapons-grade material.

CNN: U.S.: Iran has material for nuclear bomb but still 'not close'