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This post was last edited by Green Lotus on 2017-8-10 at 23:51. To increase the popularity of this section, a daily question activity has been launched; the goal of this activity is: “Learn a little bit every day, and make significant progress over ten days.” I hope everyone will participate actively; by learning and making progress, you can also easily bring wealth home :) . Participation: Prize of 5 Wealth ; Correct answer: Reward of 10 wealth points ; Note: Questions from the same day will receive full feedback if answered on the same day; answers given the next day will earn 5-8 wealth points. This post is valid for 48 hours. http://bbs.hcbbs.com/static/image/hrline/2.gif Fill-in-the-blank question: Two centrifugal pumps are in operation, and they are mainly used for achieving head. Answer: Series connection, improvement – Petrochemical sector: New ideas for energy savings in the “Creative Ideas” campaign (the second phase is currently in progress). http://bbs.hcbbs.com/thread-1666758-1-1.html 2017: “My Technical Upgrades” in the coal chemical industry. http://bbs.hcbbs.com/thread-1786290-1-1.html [Daily Question] Catalytic coking and reformed oil blending – Summary post for 2017. http://bbs.hcbbs.com/thread-1811219-1-1.html
This post was last edited by qy576100527 on 2017-8-10 12:03 to add serial connection
Two centrifugal pumps operate in 【series】, mainly for providing head.