实验结果表明这些固体酸催化剂对于低级脂肪酸的酯化反应具有较高的酸催化活性、选择性和稳定性。
The results have shown that the series of catalysts have higher acid catalytic activation, stability and selectivity to lower fatty ester.
钯复合膜具有较高的透氢速率、透氢选择性以及良好的化学和热稳定性，一直是膜技术领域的研究热点。
Palladium composite membranes have attracted wide attention in membrane technology because of their excellent permeability, perm-selectivity and chemical and thermal stability.
研究结果表明，所研制的催化剂具有较高的活性、选择性和稳定性，具有工业开发价值；
The results show that the catalysts have high activity, selectivity and stability, and are valuable for industrial application.
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