The synthesis of NMP is described in detail
NMP mainly uses the BDO method to synthesize γ-butyrolactone, and then reacts with methylamine to generate NMP. This route is a relatively mature and reliable t...
A historical landmark that reminds you of old Hong Kong
For a long time, Hong Kong has been a city of constant change. That frenetic, rejuvenating energy has captured the hearts of many. But sometimes it s important ...
PDF and word difference, how to edit pdf files on the computer?
As we all know, PDF is a special format that is difficult to edit, but Benshaw does not think so.convert word to pdf with embedded excel files Why? Let s talk...
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How to buy a car vacuum machine in the car vacuum machine selection method
I firmly believe that every wholesale wet dry car vacuum cleaner person will have a car personnel to buy a car vacuum machine for your own car, volume exquisite...
Acne and acne come again? 5 habits to change
The embarrassment of acne is that it is not a patent for young people. As long as the hormones in the body are disrupted, no matter how old the person is, it ca...
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