Question

英语翻译论文摘要:随着生活水平的提高,人们对环境要求越来越高,城市环境建设日益为人们所重视.喷泉作为一种观赏性较高的艺术

Answer 1

With the improvement of living standards, people are increasingly demanding on the environment, urban environment more seriously by the people. Fountain as a high art of ornamental water features, constantly appear in the city squares, parks and other public places. The thesis according to the output jack music music audio signal amplification, and then the audio signal into a pulse signal input circuit, and then through the optocoupler drive voltage to control the pump with the motor off, and finally realize the urgency and fountain water column slow, high and low, and the shape change of control.