乙苯装置干气进料量为12000nm3/h,设计进料量为19000nm3/h,则装置的 发布时间:2017-05-07 08:14 │ 来源:www.tikuol.com 题型:问答题 简答题 问题: 乙苯装置干气进料量为12000nm3/h,设计进料量为19000nm3/h,则装置的负荷率为多少?
题型:问答题 简答题 Film is not only a universal entertainment mode in modern times, but also an important ________ for cultural communication.A.transportation B.appearance C. controversyD.vehicle 查看答案
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