Thread Content
To increase the popularity of this section, a daily quiz campaign has been launched. The purpose of this campaign 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: The motor octane number indicates the anti-knock property of gasoline when the engine is running, while the research octane number indicates such property when the engine is not running. Answer: High rotation speed, Low rotation speed. Petrochemical sector – “Creative Ideas for Energy Saving” campaign (the second phase is currently in full swing): http://bbs.hcbbs.com/thread-1666758-1-1.html. “My Technical Upgrades” in the coal chemical industry in 2017: http://bbs.hcbbs.com/thread-1786290-1-1.html
High speed: 900 revolutions per minute, low speed: 600 revolutions per minute
Fill-in-the-blank: The motor octane rating indicates the anti-knock property of gasoline at high engine speeds, while the research octane rating indicates its anti-knock property at low engine speeds.