[Q&A] Catalytic Coking Reformate Blending Edition 20171201

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Participation: Reward of 3~5 Wealth points； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: Horizontal rolling machines come in three-axis and four-axis types; what are the two types of three-axis machines? Answer: There are two types: symmetrical and asymmetrical. Use your fingers to get involved – our ultimate goal is for everyone to acquire knowledge. Giving roses to others leaves a pleasant fragrance in one’s own hands. https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif The answers will be released automatically after two days. 【Daily Question】Summary post for 2017 on the catalytic coking and reforming oil blending version: https://bbs.hcbbs.com/thread-1811219-1-1.html 【Q&A】Summary post for 2017 on the catalytic coking and reforming oil blending version: https://bbs.hcbbs.com/thread-1826018-1-1.html