求助:聚丙烯工艺中的一句话? While the maximum water content is expected to be 2.0 ppm mole, the propylene water treater will be sized considering an amount of 5 ppm wt water in propylene and one month between two regenerations. 这段话看晕了,讲的是什么意思,应该如何翻译呢?thanks查看更多5个回答 . 4人已关注