Today many ski areas use computers to measure the conditions and start the snow making when the conditions are best. 今天许多雪场用计算机来测量天气情况,在最合适的时候造雪。
C 8 aromatics isomerization catalyst, SKI 400 40, was prepared for using in the isomerization unit in Yangzi Petrochemical Company after expansion revamping to fulfill the specified operating conditions, such as high activity of catalyst, low hydrogen/ oil ratio and high space velocity. 开发出适于扬子石油化工股份有限公司芳烃联合装置扩建后工况条件(高活性、低氢油比、高空速)的新型SKI40040型C8芳烃异构化催化剂。