Thread Content
To increase the popularity of this section, a daily quiz activity has been launched. The purpose 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, they can also easily bring wealth home :) . Participation: Prize of 5 Wealth ； Correct answer: Reward of 10 wealth points ； Note: For questions from the same day, full feedback will be given if answered on the same day; answering the next day earns 5-8 wealth points. This post is valid for 48 hours. http://bbs.hcbbs.com/static/image/hrline/5.gif Multiple-choice question (Catalysis section): In inclined tubes, the phenomenon of interruption in catalyst circulation is called ( ). A: Landslide B: Building a bridge C: Dead bed. Correct answer: B: Building a bridge. http://bbs.hcbbs.com/hcdown/data/attachment/forum/201704/07/122423adihsdie34h3gsgd.jpg.thumb.jpg======================== Petrochemical sector – “Creative Ideas for Energy Savings” event (sponsors sought; highest returns ever). http://bbs.hcbbs.com/thread-1666758-1-1.html Sponsors are being sought for this event; those interested can contact the event organizer. The petrochemical processing-themed event – sharing pictures of chemical equipment has begun! A vast amount of wealth, as well as HChuan coins, are waiting for you to claim them: http://bbs.hcbbs.com/thread-1760733-1-1.html. Notice regarding the collection of chemical engineering technical materials in the \"Petroleum and Chemicals Section\": http://bbs.hcbbs.com/thread-1614796-1-1.html