I’m not an undergraduate agriculture after all, despite to find out the solutions by myself, I also asked some seniors who are willing to share. My planting is getting better and better which is due to an introduction of a master, so that my whole production process has been smooth. The Alaska high velocity fans have a good circulated transmission, the performance is far from the traditional fans I used. With high air volume and low noise level, I’m satisfied with the whole distribution result with Alaska fans.