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1·The vitric tuff of Linli in Hunan may become a qualified synthetic material of zeolite molecular sieve after it is pretreated adequate1y.

经适当预处理，湖南临澧玻屑凝灰岩可成为沸石分子筛的合成原料。

2·Thus the preferential exploitation of the vitric tuff in high level is synthesis of zeolite molecular sieves and a series of products made from the synthetic zeolites.

因而，沸石分子筛的合成及其系列产品开发是玻屑凝灰岩深层次开发利用的优先发展方向。