London Olympics 2012.8.1(周三)? Hi everybody,first I'd like to congratulate our Chinese athletes' perfect performance in London Olympic Games.Really I can not express my big excitement every time of our compatriot's sucess. Therefore,today we will go without any translation but if you like,share your feelings about London Olympics here.Good day for you today! note:"compatriot" means 同胞 查看更多0个回答 . 4人已关注
radfrac设计规定有问题,哪位大神给纠正一下。? 异 丙醇 和水,回收异丙醇,进料大约60%的含量,共沸组成87%,设计 蒸馏塔 回收80%左右的异丙醇溶液,用radfrac模块来设计塔,设计规定操作变量总是弄不好,出现错误:ERROR DESIGN SPEC IS NOT SATISFIED BECAUSE ONE OR MORE MANIPULATED VARIABLE IS AT ITS BOUND. 请大神帮忙看看问题在哪! 查看更多3个回答 . 2人已关注