There is a person who wants to hang a picture. He has nails but no hammer. The neighbor had a hammer, so he decided to borrow it from the neighbor.At ...
1. What is reflux ratio? What effect does it have on distillation? Answer: reflux ratio refers to the ratio of the amount of downflow liquid and the ...
The spring backs to the earth, and grass grows and warlords fly, it is "March 8th" International Women's day comes. In order to commemorate this festi...
According to the news on March 6, 2017, the equipment delivery work of our company for Minyuan project has been carried out one after another. Since t...
A psychologist who enjoys a high reputation in the medical field said when he was about to retire: The most useful teacher to help himself change his ...
According to the news on March 3, 2017, DEAR air separation was awarded as the excellent credit statistics unit of 2016. In order to promote the basic...
Time flies. Time flies like a shuttle. The busy year of 2016 has passed in a blink of an eye, and the year of 2017 full of expectation is coming to us...
The girl bought a pair of pants, which was too long after a try. She asked Grandma to help cut it short, but grandma said she was busy; she didn't...
Good news came from Shandong on January 13, 2017. On the occasion of the coming of the new year, DEAR air separation and Shandong Kenli Petrochemical ...
When the beggar went to Little Wang's house to beg, he gave him ten yuan. The next day, the beggar went again and gave him another ten yuan, which...
On January 6, 2017, the municipal science and technology bureau reported that the construction of "Kaifeng Air separation engineering technology ...
