沉淀剂

In the orthogonal designable experiment ,the analysis results of zirconium source, precipitation , the sulfating agent is 1.54%, 2.27%, 5.11%,respectively. This result show that the influence of sulfating agent to the catalytic activity is the biggest. Under the same density of the sulfuric acid soaks, the effect of sulfuric acid is well compared to ammonium sulfate .The second is the precipitation, but the influence of the zirconia source is the smallest.

正交设计实验中锆源、沉淀剂、硫酸化试剂的极差分析结果分别为1.54%，2.27%，5.11%，此结果说明硫酸化试剂对催化剂的影响最大，其次是沉淀剂，锆源的影响最小，同时表明以Zr(NO3)4·5H2O为锆源、乙胺为沉淀剂、硫酸为硫酸化试剂是催化剂的最佳制备方案。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。