【Picture of the Day】2016 04 27 What is the device in this picture? Let’s see how many people can figure it out

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【Picture of the Day】2016 04 27 What is the device in this picture? Let’s see how many people can figure it out Promotion of petrochemical activities: Notice on the launch of the large-scale event “I’m saving energy, where are you?” in the petrochemical area. http://bbs.hcbbs.com/thread-1579199-1-1.html This event offers awards in both text and image categories. When there are over 200 entries, an additional grand prize will be awarded; the value of this prize is 600 Haichuan coins. If there are more than 300 entries, the grand prize value increases to 1,000 Haichuan coins, and if there are 500 entries, it rises to 1,500 Haichuan coins. First prize: 3 Haichuan commemorative water cups. Second prize: 5 winners, each receiving 120 Haichuan coins. Honorable mentions: several winners, each receiving 200 Haichuan coins. 1. Posts for competitive submissions in various categories: http://bbs.hcbbs.com/thread-1568416-1-1.html (Source: Haichuan Chemical Forum) 2. [Petrochemical Weekly] Issue No. 9, dated 2016-3-12 (Summary of recent petrochemical activities): http://bbs.hcbbs.com/thread-1568615-1-1.html (Source: Haichuan Chemical Forum) 3. Summary of events under the “Haichuan Gratitude Season” [Petrochemical Section]: http://bbs.hcbbs.com/thread-1533218-1-1.html (Source: Haichuan Chemical Forum) 4. Summary of professional “basic knowledge” posts in the [Petrochemical Section] (Supported by the main forum; amazing prizes await you): http://bbs.hcbbs.com/thread-1557057-1-1.html (Source: Haichuan Chemical Forum)