The perfermance test on a commercial riser cracker shows that meta-Y-3A molecular sieve cracking catalyst is of high activity and improved gasoline selectivity.
偏Y-3A分子筛裂化催化剂在提升管催化裂化工业装置上使用试验的结果表明，该催化剂的裂化活性较高，汽油选择性较好。
In plain English, we've been running high-compression engines on low test gasoline with no problems and have no ideas when we'll stop climbing on the compression rations.
在简单易懂的英语，我们已经运行的高压缩比引擎，低测试汽油没有问题，也没有任何想法时，我们会停止攀登上压缩口粮。
In plain English, we've been running high-compression engines on low test gasoline with no problems and have no ideas when we'll stop climbing on the compression rations.
在简单易懂的英语，我们已经运行的高压缩比引擎，低测试汽油没有问题，也没有任何想法时，我们会停止攀登上压缩口粮。
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