四元物系NRTL交互作用参数的回归方法? 只需要两元的气液平衡数据就可以的,四元的气液平衡的实验数据的回归只是为了验证二元参数的准确性 我目前是将二元和三元的数据一起回归的,数据来自文献,回归后发现有一组数据误差特别大,然后提示constraints cannot be satisfied for this case。附件中有文献和我的拟合文件,可否指教排查、修正存在的错误。版本7.3.2 查看更多
每日翻译1-7英译汉? 看了楼上各位的翻译,觉得有些理解有误,如果把前后文也贴出来的话,也许更容易理解。google如下: you now face a new world, a world of change. the thrust into outer space of the satellite, spheres and missiles marked the beginning of another epoch in the long story of mankind - the chapter of the space age. in the five or more billions of years the scientists tell us it has taken to form the earth, in the three or more billion years of development of the human race, there has never been a greater, a more abrupt or staggering evolution. we deal now not with things of this world alone, but with the illimitable distances and as yet unfathomed mysteries of the universe. we are reaching out for a new and boundless frontier. we speak in strange terms: of harnessing the cosmic energy; of making winds and tides work for us; of creating unheard synthetic materials to supplement or even replace our old standard basics; of purifying sea water for our drink; of mining ocean floors for new fields of wealth and food; of disease preventatives to expand life into the hundred of years; of controlling the weather for a more equitable distribution of heat and cold, of rain and shine; of space ships to the moon; of the primary target in war, no longer limited to the armed forces of an enemy, but instead to include his civil populations; of ultimate conflict between a united human race and the sinister forces of some other planetary galaxy; of such dreams and fantasies as to make life the most exciting of all time.查看更多