The purity of vinyltoluene is greater than 99%, purified yield perpass greater than 65%.
成品甲基苯乙烯纯度大于99%，精制单程收率大于65%。
2
This is done in several passes and potentially several iterations perpass until all possible transformations have been applied.
这在若干传递中完成，且每个传递可能需要若干迭代，直至应用了所有可能的转换。
3
The outcome has indicated that the initiating agent not only can improve the product performance, but also increase conversion perpass of the plant, it has a high economic and social benefit.